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@FireFalcon1155 What is the output?
@moigithub Thank you so much! I have been stuck on that Wherefore Art Thou challenge and you helped me solve it.
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Hello
@FireFalcon1155 Great.. How would you loop that to include "wOrld" ?
@moigithub so i don't get why weather.weather.description isn't working?
@kelifine can u share ur codepen link ?
I can loop through arr, and put line 3 in the loop
@FireFalcon1155 Sure.
Do you see how this is starting to get built?
yea...
num.indexOf is not a function How can I make this a function? I'm doing Roman Numeral Converter under Intermediate Algorithm Scripting.
function convertToRoman(num) {
if (num.indexOf(num) === 1) {
num.push(num);
console.log('The numbers are : ' + num);
} else if (num.indexOf(num) > 1) {
console.log(num + ' is already included with the rest of the numbers.');
}
return num;
}
convertToRoman(36);
@moigithub https://codepen.io/kelfin373/pen/XKyEdN
@erayozer17 u comparing the NEXT word vs the PREVIOUS... soo at the end of ur iteration
"lazy" vs "dog".. lazy wins!! cuz it have more characters 4 vs 3
soo ur longest variable will have 4 <-- which is wrong..cuz jumped have more characters
"lazy" vs "dog".. lazy wins!! cuz it have more characters 4 vs 3
soo ur longest variable will have 4 <-- which is wrong..cuz jumped have more characters
@LisaRamos your code is recursive. It will only find it's own index starting at 0
@erayozer17 u should compare the
[i]word length vs longest variable...
@kelifine console.log(weather) <-- gimme this
https://i.gyazo.com/db679a26d6827f675b827cfeff1ffbdd.png
soour weather is an array of objects.... it do not have "directly" a description property
FIRST u need to access the array element
https://i.gyazo.com/db679a26d6827f675b827cfeff1ffbdd.png
soour weather is an array of objects.... it do not have "directly" a description property
FIRST u need to access the array element
wheather[0] then u can access description
@moigithub ok so I should do weather.weather[3]?
@kelifine not 3.. it only have 1 element...
weather.weather[0] <-- return an object... and this object have a description propertyweather.weather[0].description
@moigithub thank you so much
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@moigithub so would I do weather.weather[0]["description"]?
guys I need some help. so my code down there returns this: 'undefined I\'m A Little Tea Pot' instead of "I'm A Little Tea Pot" how do I fix it?
@kelifine yep
function titleCase(str) {
var lol;
var arr = str.split(" "); // giving us ["hElLo","wOrld"];
for(i=0;i<arr.length;i++){
lol+=" "+arr[i].charAt(0).toUpperCase() + arr[i].slice(1).toLowerCase();
}
return lol;
}
titleCase("I'm a little tea pot");function titleCase(str) {
var lol;
var arr = str.split(" "); // giving us ["hElLo","wOrld"];
for(i=0;i<arr.length;i++){
lol+=" "+arr[i].charAt(0).toUpperCase() + arr[i].slice(1).toLowerCase();
}
return lol;
}
titleCase("I'm a little tea pot");
@moigithub thanks so much!!!
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function titleCase(str) {
var lol;
var arr = str.split(" "); // giving us ["hElLo","wOrld"];
for(i=0;i<arr.length;i++){
lol+=" "+arr[i].charAt(0).toUpperCase() + arr[i].slice(1).toLowerCase();
}
return lol;
}
titleCase("I'm a little tea pot");
guys I need some help. so my code there returns this: 'undefined I\'m A Little Tea Pot' instead of "I'm A Little Tea Pot" how do I fix it
lol is uninitialized.. soo first value would be undefined
lol+=" " is the same as lol = lol + " " ...
soo ur code doing lol = undefined + " " ...
initialize lol as empty string
lol+=" " is the same as lol = lol + " " ...
soo ur code doing lol = undefined + " " ...
initialize lol as empty string
var lol = "";
so I should do var lol=""?
oh ok
and.. still not passing cuz.. u have a extra string at start
u can use trim() to remove that extra when return
u can use trim() to remove that extra when return
how?
asking like an idiot
hold on
@LisaRamos numbers do NOT have indexOf method.. only strings and arrays
@LisaRamos this might help, but be careful because the answer is included further down the page https://github.com/FreeCodeCamp/freecodecamp/wiki/Algorithm-roman-numeral-converter
@moigithub do I do this .trim() or this? .trim("");
@FireFalcon1155 mdn.io/trim <--
I am stuck. How do I assign the contents of a to variable b?
var a = 7;
var b = 7;
var b = 7;
@beginnerdidi var b = a; after you have declared a
Let me try. @wjhurley
Thank you. @wjhurley It worked but I still don't understand it.
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@beginnerdidi var b = a; means that anything that is in variable a is now assigned to b
@beginnerdidi lets say a = 5. When you do var b = a, a is holding the value of 5
so this is what I noticed
whenever i'm face to face with a problem, i can't seem to solve it no matter how hard i try without someone's help. even then i struggle.
what do i do?
break it up
Ok thank you so much for explaining @errosc , I read it again and again and again it made sense...
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:warning: could not find receiver for errosc
Anyone available to help me destroy a bug? http://ryanmalm.com/js13k/
the blue box should collide with the red box. They're the only two entities present, render correctly but won't collide. Ideas?
This message was deleted
@wjhurley Now how can I fix this unexpected end of input I got in this Roman Numeral Converter exercise?
function convertToRoman(num) {
var decimalValues = [1000, 900, 500];
var romanNumerals = ['M', 'CM', 'D'];
var romanized = '';
for (i = 0; i < values.length; i++) {
while (values[i] <= num) {
romanized + romanNumerals[i];
num -= value[i];
}
return num;
}
convertToRoman(36);
@LisaRamos the problem is with the statement
romanized + romanNumerals[i]; should be romanized += romanNumerals[i]
@Rybar I changed that part but I still got the same unexpected end of input message.
@LisaRamos
i < values.length; whats values ?? i dont see u have that declared
@moigithub Now how do I declare that?
@LisaRamos dont know what values is supposed to be
@moigithub I think I messed up that one.
probably values should be decimalValues ???? @LisaRamos
@LisaRamos yes, neither value or values is declared
@moigithub I fixed it but it's not running. Have I done anything wrong?
function convertToRoman(num) {
var decimalValues = [1000, 900, 500];
var romanNumerals = ['M', 'CM', 'D'];
var romanized = '';
for (i = 0; i < decimalValues.length; i++) {
while (decimalValues[i] <= num) {
romanized + romanNumerals[i]
num -= decimalValues[i];
}
return num;
}
convertToRoman(36);
you're returning the wrong var... take another look
:point_up: August 27, 2016 8:03 PM <--- check that @LisaRamos
and you'll need a few more array entries for both of your number tables for it to work for all numbers
and, you're still not doing +=, like @moigithub pointed out.
On the "Profile Lookup" exercise, would it be cheating if you explicitly check the prop variable against "firstName", "lastName", "number", and "likes"? I feel like I'm supposed to iterate through the properties.
if it works.. and make ur life easier.. why not :) @Jonkiote
Okay, haha.
thanks @moigithub
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@Rybar Now how is this code? I know it's still not going through.
function convertToRoman(num) {
var decimalValues = [ 1000, 900, 500, 400, 100, 90, 50, 40, 10, 9, 5, 4, 1 ];
var romanNumerals = [ 'M', 'CM', 'D', 'CD', 'C', 'XC', 'L', 'XL', 'X', 'IX', 'V', 'IV', 'I' ];
var romanized = '';
for (var i = 0; i < decimalValues.length; i++) {
while (decimalValues[i] <= num) {
romanized += romanNumerals[i]
num -= decimalValues[i];
}
return num;
}
convertToRoman(36);
:point_up: August 27, 2016 8:07 PM << that too :) @LisaRamos
u should return the roman number instead (at that point propbably num will be 0 cuz all substractions )
u should return the roman number instead (at that point propbably num will be 0 cuz all substractions )
looks good except for the return statement. @LisaRamos
@Rybar Now what do I do with the
return statement?
@LisaRamos You're almost doing it the same way that I did it.
look at what you're returning. Is num what you've been modifying in your loop? Is it the answer the problem is looking for?
Hi guys, im currently doing one of the challenges: find the longest word in a string. But im getting a type error en im trying to push the length of the words into an array. Here is my code
@Rybar I'm trying to modify
num.
function findLongestWord(str) {
var warr = str.split(' ');
var num = [];
for(var i = 0; i <= warr.length; i++)
{
num.push(warr[i].length);
}
return num;
}
findLongestWord("The quick brown fox jumped over the lazy dog");
num isn't the roman numeral string though.
you can return anything in your function....
any help will be appreciate it :)
@Rybar what can I return besides
num?
@haranzalez on ur code.. num is an array with all words length
ie: [3,5,5,3,6,4]
ie: [3,5,5,3,6,4]
@haranzalez you're returning the entire array, when what you want is one piece of it. Arrays have some handy functions built in that might help you sort it out...
Yes it should be like that, but is giving me a type error stating that it is not an object
@haranzalez also.. arrays start on 0 index.. so it ends on length -1
<= will try to access unexistant elements.. shoul dbe < only
<= will try to access unexistant elements.. shoul dbe < only
Yes!!! That worked !!! @moigithub
thanks man!!!
:+1:
Hi again guys, I'm stuck at the quote machine challenge. I'm trying to get data from the API, but it's not working. This is a part of my code:
$http({
method: 'GET',
url: ' http://api.forismatic.com/api/1.0/?method=getQuote&key=457653&format=json&lang=en'
}).then(function successCallback(response) {
alert("Test A!");
}, function errorCallback(response) {
alert("Test B!");
});
no alert is executing, and I don't know how to get the data. Can someone help?
@matheus-lima92 $http es un servicio de angular .. para poder usarlo tienes q agregarlo/inyectarlo como dependencia primero
@moigithub Yes, I'm trying to do it with angular, but it's not working
@moigithub Thank you for your help challenge passed :racehorse:
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@LisaRamos you get your return figured out?
Does anyone test their code for the projects? If so, which framework do you use?
@magikid https://jsfiddle.net/
:|
I'm trying to do Where art thou ... LOL. This is almost comical.
Anyway I'm testing out my Wherefore art thou code and all I'm getting is this
[]. Now how can I make this thing run in the conslole, whatever it is?function whatIsInAName(collection, source) {
// What's in a name?
var arr = [];
// Only change code below this line
for (var prop in arr) {
if (hasOwnProperty.call(arr, prop)) {
result.push(prop);
} else if (Object.prototype.hasOwnProperty.call(source, collection)) {
target[collection] = source[collection];
} else {
return target;
}
}
// Only change code above this line
return arr;
}
whatIsInAName([{ first: "Romeo", last: "Montague" }, { first: "Mercutio", last: null }, { first: "Tybalt", last: "Capulet" }], { last: "Capulet" });
@LisaRamos
var arr = []; for (var prop in arr) { ... }
you know for a fact that
arr is empty
why are you iterating through it
@llamatarianism All I could say is I was trying to do something different with my code but should I remove the
for loop?
no, no, the for loop is fine
it's just that you're iterating through
arr
when
arr is always empty
so the for loop is kinda pointless
really, your code may as well be this:
function whatIsInAName(collection, source) {
var arr = [];
return arr;
}
those are the only 2 lines that get executed
@llamatarianism Hold on, I need to do some things. I'll be back tomorrow.
@daulis809 thanks for the suggestion
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@magikid welcome!
Look at me go!
I guess.. I need a second loop?
hmmm.
@revisualize I've done it :smile: good luck
Thanks. I'm trying.
@revisualize yes, i used an outer loop to go through collection and an inner loop to go through source's keys
i actually just redid this one to make sure i could still do it
i did not use hasOwnProperty
no hasOwnProperty. Hmmm
Nevermind. I'm still stressing out over Wherefore Art Thou, especially over the
[] in the console. How can I fix this code I have here so that way it can run?
function whatIsInAName(collection, source) {
// What's in a name?
var arr = [];
// Only change code below this line
for (var prop in arr) {
if (hasOwnProperty.call(arr, prop)) {
result.push(prop);
} else if (Object.prototype.hasOwnProperty.call(source, collection)) {
target[collection] = source[collection];
} else {
return target;
}
}
// Only change code above this line
return arr;
}
whatIsInAName([{ first: "Romeo", last: "Montague" }, { first: "Mercutio", last: null }, { first: "Tybalt", last: "Capulet" }], { last: "Capulet" });
I'll try to figure this thing out. I need to leave this Starsmucks Caffe.
@LisaRamos What is
arr.length?
@LisaRamos arr is empty
@LisaRamos Where are you getting the prop variable from?
@revisualize What can I put in
arr?
Anything you want?
@revisualize you can use equality operator to see if certain keys in collection exist and if the properties they contain are the same key/property combo as found in source, all at once
@revisualize I got the idea from Mozilla's developer website.
(trying to keep it kind of vague)
Hmm.. I need to figure this out. But, it is 740pm here in Seattle. And my Starsmucks Caffe is closing.
revisualize @revisualize goes the AFK.
Hey all, I'm having a problem with the "Record Collection" task. For reference: https://www.freecodecamp.com/challenges/record-collection
Here's what I have so far. Would someone mind giving me a hint/pointing me in the right direction? http://codepen.io/anon/pen/qNZPmX
@adamjubert - any place in your code that you are using the
id value, it should be indexing into the collection to access particular objects - collection[id] - that would be a place to start. Look at how you are accessing collection - the id value alone really cannot be used on its own.
I'm still having a problem with Wherefore Art Thou. The code:
function whatIsInAName(collection, source) {
// What's in a name?
var arr = [];
// Only change code below this line
for (var prop in arr) {
if (hasOwnProperty.call(arr, prop)) {
result.push(prop);
} else if (Object.prototype.hasOwnProperty.call(source, collection)) {
target[collection] = source[collection];
} else {
return target;
}
}
// Only change code above this line
return arr;
}
whatIsInAName([{ first: "Romeo", last: "Montague" }, { first: "Mercutio", last: null }, { first: "Tybalt", last: "Capulet" }], { last: "Capulet" });It's not running. What can I do to fix it?
@LisaRamos - what is in the
arr - you are trying to iterate through it with that for statement, but ...?
@khaduch I think I was trying to iterate through it with the
for statement.
@LisaRamos - what does
arr contain? It looks like a variable that you should be using to accumulate results, because that is what you are supposed to return. It starts out as an empty array? Nothing to iterate through?
@khaduch Nope but what could I put in
arr?
@khaduch Thanks, such an obvious error. I fixed that but now it's throwing a TypeError: "Cannot set property 'prop' of undefined"
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@LisaRamos - I haven't re-read the problem, but I think that
arr should eventually hold the objects that meet the test condition - for this example call, anything with { last: "Capulet" } as part of an object should be copied to arr during your code execution.
@khaduch Do you think I could remove the
for loop instead?
@LisaRamos - no, you need to iterate over that array of objects that are passed in as the
collection argument, so I think that your for loop should be used to iterate over collection.
@adamjubert - can you post a new link to your updated code?
@khaduch I used the for loop to iterate over collection but I got a message saying that a target is not defined.
function whatIsInAName(collection, source) {
// What's in a name?
var arr = [];
// Only change code below this line
for (var prop in collection) {
if (hasOwnProperty.call(arr, prop)) {
result.push(prop);
} else if (Object.prototype.hasOwnProperty.call(source, collection)) {
target[collection] = source[collection];
} else {
return target;
}
}
// Only change code above this line
return arr;
}
whatIsInAName([{ first: "Romeo", last: "Montague" }, { first: "Mercutio", last: null }, { first: "Tybalt", last: "Capulet" }], { last: "Capulet" });How can I define a target?
@khaduch http://codepen.io/anon/pen/qNZPmX
It's something with line 34, but I can't figure out what.
I'm working on Seek and Destroy. For something like (["tree", "hamburger", 53], "tree", 53), can anyone give me some guidance as to how you can access the elements in the initial array vs. the elements in the outer array.
@LisaRamos What does this:
hasOwnProperty.call(arr, prop) ... actually do?
@asonder
arguments
@revisualize I think I was trying to return a boolean indicating whether an object has the specified property.
@LisaRamos On one you're doing this:
in another you're doing this:
What's the difference?
(hasOwnProperty.call(arr, prop))in another you're doing this:
(Object.prototype.hasOwnProperty.call(source, collection))What's the difference?
@LisaRamos I'm working on that challenge as well. And I don't think
(hasOwnProperty.call(arr, prop)) is actually doing anything.
@revisualize Now how can I change that?
@LisaRamos Also, if it was doing something..
result.push(prop); ... wouldn't do anything because there is no results variable.
@LisaRamos No idea.
But, it doesn't look right to me.
@khaduch I found the problem - I was using dot notation when apparently I needed to use bracket notation - now I'm working through the rest.
@LisaRamos I don't see
hasOwnProperty as a built in Object: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects
@adamjubert - you must review the lessons on accessing object properties with dot notation and bracket notation - particularly this one: "Accessing Objects Properties with Variables" - since that is what you need to be doing here, as the id and prop are passed in using the function arguments, which are variables that you use. (Hint: collection.id is not correct, since there is no property in collection named id.) Please review those lessons - it is an important concept!
UPDATE : I see that you realized that...
@revisualize Should I get rid of
hasOwnProperty?
@LisaRamos Or fix it.
@LisaRamos I know that there is a
Object.prototype.hasOwnProperty() method.
And you do too.
Because you're using it.
But, I'm not sure why you'd use it twice.
@LisaRamos So, you don't have a
result variable. Also.. What is target? I don't see that you've defined it anywhere. But, you're returning it.
@khaduch Thanks... One last question before I just go through and completely re-do the last 10-15 lessons... Now I'm stuck on lines 35-37. I swear I've got it right but it's obviously not working correctly.
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@revisualize I'm confused and stressed out.
function whatIsInAName(collection, source) {
// What's in a name?
var arr = [];
// Only change code below this line
for (var result = 0; result < collection.length; result++) {
if (hasOwnProperty.call(arr)) {
result.push(arr);
} else if (Object.prototype.hasOwnProperty.call(source, collection)) {
target[collection] = source[collection];
} else {
return target;
}
}
// Only change code above this line
return arr;
}
whatIsInAName([{ first: "Romeo", last: "Montague" }, { first: "Mercutio", last: null }, { first: "Tybalt", last: "Capulet" }], { last: "Capulet" });
@LisaRamos It's okay. Sometimes it is good to take a break. I'm having a hard time with the challenge myself.
@adamjubert - are you saving your CodePen - I'm still seeing
collection.id instead of collection[id]???
@revisualize I can't take a break at all or else I'd be lazy. I have to solve this. Has anyone else done this exercise?
@LisaRamos I got two of the four items to check green.
@khaduch Sorry! Just saved it.
@revisualize Which ones?
@LisaRamos The first two.
@revisualize Do you mean Intermediate Algorithm Scripting?
@adamjubert - lines 35 - 37. You want to create a property
tracks on that particular collection[id] in the situation where you do not have "tracks" there. So you can just to collection[id].tracks = []; and then push to that. collection[id].tracks.push(value); OR you can do it all in one move with collection[id].tracks = [value];
@LisaRamos You know.. Where Art Thou.. The challenge...
This.
@khaduch Ah I was so close! Thank you for your help, Ken. I was feeling stuck and frustrated. Love the FCC Community.
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@LisaRamos Or are we both working on different challenges?
@revisualize It's the same challenge.
@LisaRamos - I have to stop, it's late, but I'll just try to direct you in a better direction - instead of naming your for loop variable result, which is misleading, just name it i - it is going to be an index through the collection array. Then something like this:
for ( var i = 0; i < collection.length; i++ ) {
// now you want to check the collection element that you are looking at for the existence and content of properties
if ( collection[i].hasOwnProperty( whatever_property_you_need_to_check ) && collection[i][whatever_property_you_need_to_check] === source[ whatever_property_you_need_to_check] ) {
// you have a matching property and value - this is what you need to be able to add the current object to the result `arr`.
arr.push(collection[i]);
}
}That doesn't get you the entire solution, there is a little more complexity, and I'm sorry it if confuses you even more - but you need to do something like that in order to create the solution to this challenge.
Note that the "whatever_property_you_need_to_check" properties are those properties of the object in the source function argument. You have to have each of the same property and same value that exist in the source in each of the collection objects in order to add it to the solution set, stored in arr, which is what will eventually be returned to the caller of the function.
@khaduch That explanation is exactly where I'm at.
@moigithub thank you!
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@khaduch Well, I need to step off for now because it's late and I'm stressing myself over this exercise.
so the difference between the Diff Two Arrays challenge and the Symmetric Difference challenge is that the latter may take more than 2 arrays, right?
@revisualize - the complication (as I see it) is that some of the
source objects have multiple properties. So you have to set up a loop within the for loop that is iterating over the collection, and then keep track of whether or not all of the properties and values that they contain match. I think that is a bit of a leap in solving this challenge. IT is similar to the other collection challenge with the contacts and firstName matching - you cannot just jump and do something (as in that challenge with return "no such contact";) until you have ferreted out all of the possible matches and mismatches. In fact, in my solution, I kept two variables "matches" and "mismatches", and if there was a property match, I incremented "matches", and if there was a miss, I incremented "mismatches". Then at the end, something like if ( matches && !mismatches) { arr.push(collection[i]); } Just a bit of bookkeeping to fully recognize that the object should be kept in the solution array...
@AdventureBear - yeah, basically that's the situation.
khaduch @khaduch - I hope that helps - I'm checking out for the night...
@khaduch thanks
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I am stuck what am I doing wrong? myVar = 87 + 1;
myVar = myVar++;
myVar = myVar++;
myVar = myVar should be changed
@beginnerdidi myVar++; is the same as myVar = myVar + 1;
can anyone tell me about the Nesting For Loops
Let me try @alexanderkopke
@beginnerdidi myVar++ not myVar = myVar++
@suraj18gts
for(var i = 0; i < arr.length; i++){
for(var a = 0; a < arr.length; a++){
/* Do something here */
}
}
Can someone take a look at my code for the mutation script and tell me where the mistake is? I've been looking at it for a long time and I can't see where the problem is.
Pleas!! Can some body tell me what is wrong with my codes??
@nevaIsDreaming Where is your code? ;)
Please help me what am i doing wrong? I tried @alexanderkopke https://www.freecodecamp.com/challenges/increment-a-number-with-javascript#?solution=%0Avar%20myVar%20%3D%2087%3B%0A%0A%2F%2F%20Only%20change%20code%20below%20this%20line%0AmyVar%20%3D%2087%20%2B%201%3B%0AmyVar%20%3D%20myVar%2B%2B%3B
@alexanderkopke thanks for asking, but i just figured it out. I had a
} in the wrong place.
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@nevaIsDreaming good work!
@beginnerdidi in this example only use ++ to add 1 to myVar. You have myVar = myVar +1; but this is not needed in this challenge.. also myVar = myVar++ is not correct. Just myVar++; that is enough
@beginnerdidi try one more time.. If it doesn't work I will show you the solution. Sometimes it is needed to see it to understand it.
@beginnerdidi var ex = 1; <-- ex is now 1. ex++; <--- now ex is 2; ex++; <-- now ex is 3.
@purelight4ever for certain records the property tracks could not exist, so you have to create it first
If prop is "tracks" but the album doesn't have a "tracks" property, create an empty array before adding the new value to the album's corresponding property.
https://www.freecodecamp.com/challenges/testing-objects-for-properties
https://www.freecodecamp.com/challenges/add-new-properties-to-a-javascript-object
@purelight4ever also don't forget to return the collection at the end. I think that is needed
It worked only with myVar++; and deleted all the other codes. Thank you so much for your help @alexanderkopke . I copied your example thank you.
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@beginnerdidi good work!
@Chrono79 That's a good point... I will try that Thank you.
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@alexanderkopke Thank you
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@alexanderkopke Thank you
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@purelight4ever :+1:
Hey there, can anyone help me out with the Phone Number problem in the advanced algorithms?
I have a somewhat convoluted solution that removes all the spaces in the phone nums first before testing for 3 possible valid phone number formats in regex.
The space-removing regex isn't working properly and I don't really know why.
im on the Mutations bonfire,is there something wrong with my code?
```var lowCase = arr.toString().toLowerCase();
var split = lowCase.split(",");
if(lowCase.indexOf(split[1]) === 0){
console.log(lowCase,split[1]);
return true;
}else if(lowCase.indexOf(split[1]) === -1) return false;```
When I test that specific block of code, I get this result, for example: http://i.imgur.com/3D5pAI7.png
guys, I need help with JavaScript: Manipulate Arrays With Pop.
i want to show you guys my code but i don;t know how
i want to show you guys my code but i don;t know how
@erickzhao paste all of your code as formatted text. or put it on repl.it and share the link. or something
@qualitymanifest
telephoneCheck("1 555-555-5555");
function telephoneCheck(str) {
str = str.replace("/\s/g","");
//(555)555-5555
if (/^1?[(][0-9][0-9][0-9][)][0-9][0-9][0-9][-][0-9][0-9][0-9][0-9]/m.test(str)) return true;
//55555555555
if (/^1?[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]$/m.test(str)) return true;
//555-555-5555
if (/^1?[0-9][0-9][0-9][-][0-9][0-9][0-9][-][0-9][0-9][0-9][0-9]$/m.test(str)) return true;
return false;
}
my regex for telephone string testing is very unoptimized but that shouldn't be the problem because for example "1555-555-5555" would return true while "1 555-555-5555" returns false. something to do with replacing all spaces for some reason afaik.
@erickzhao
"/\s/g" that should not be in quotation marks
@acloud12345678 surround ur code with this (minus the exclamation marks)
`!```javascript
`!```code here
@qualitymanifest thanks a lot lmao i'm a dumbass
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@erickzhao thanks, let me try
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@erickzhao np. it should work after that. it sounds like you understand this already, but this can be done with one block of regex
`
// Example
var ourArray = [1,2,3];
var removedFromOurArray = ourArray.pop();
// removedFromOurArray now equals 3, and ourArray now equals [1,2]
// Setup
var myArray = [["John", 23], ["cat", 2]];
// Only change code below this line.
var removedFromMyArray;
var removedFromMyArray = myArray.pop();
```
How to do code block format:
```js [SHIFT+ENTER]
// your code here
```[CTRL+ENTER or CMD+ENTER to send]
Please do not confuse `s with 's.
Also note that the ```s need to each be on their own lines
The ` key can usually be found on most keyboards up next to the 1 key.
If you hit SHIFT+` it will give you the ~.
Example:
```
code
```
...
Output:
var code = undefined;...
You can also do inline code formatting:
A string of text with a `variable` or `other bit of code`.
Output:
A string of text with a variable or other bit of code.
@revisualize ok, let me try
// Example
var ourArray = [1,2,3];
var removedFromOurArray = ourArray.pop();
// removedFromOurArray now equals 3, and ourArray now equals [1,2]
// Setup
var myArray = [["John", 23], ["cat", 2]];
// Only change code below this line.
var removedFromMyArray;
var removedFromMyArray = myArray.pop();
You can edit posts.
You can also delete posts.
@revisualize ok, thanks for the information, I may need it later on
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@acloud12345678 Why are you declaring your variable twice?
@revisualize so I should’t do that?
@acloud12345678 Nope.
@revisualize ok, let me try
var removedFromMyArray; Remove this one line and it should work.
revisualize @revisualize leaves. :8ball:
@revisualize thanks
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@hacu9 I'm not sure what your code is doing there. From what I can tell, your
indexOf call is just comparing arr.toString().toLowerCase() to the 2nd index of arr, put to all lowercase letters. You also don't have a return value for your function if your two if conditions aren't met. From what I recall, you should be looping through each individual letter to see if it's present in the other string, since you're comparing all characters within the two parameters.
@erickzhao https://repl.it/languages/javascript
ups,ill try later
i need help with Write Reusable JavaScript with Functions
```js
// Example
function ourReusableFunction() {
console.log("Heyya, World");
}
ourReusableFunction();
// Only change code below this line
// Example
function ourReusableFunction() {
console.log("Heyya, World");
}
ourReusableFunction();
// Only change code below this line
@Bnobo what's your issue?
oops, I deleted my code right before this
let me try again
@erickzhao
let me try again
@erickzhao
```js
// Example
function ourReusableFunction() {
console.log("Heyya, World");
}
ourReusableFunction();
// Only change code below this line
var reusableFunction("Hi Wolrd");
@Bnobo the syntax the create a new function in JS is
function myFunction(parameters){
//function body
}
@erickzhao ok, let me try
@acloud12345678 you are calling your function a variable
@erickzhao I do not know how to use that, sorry
@THalletProtech I deleted the "var" in front of "myFunction"
you must initilize your function like in erikz code... replace var with function
it says I am missing formal parameter
oh, wait
refer to the example above your code
ok
but I don't know what to put in for "parameters"
its optional
so do I just delete that part, or do I leave it the way it is
leave empty!
ok
also, what do I type in for //function body
whatever you need to type
it is still not meeting the requirements
// Example
function ourReusableFunction() {
console.log("Heyya, World");
}
ourReusableFunction();
// Only change code below this line
function myFunction(){
myFunction("Hi World");
}
@erickzhao Whats up
The example function they give functions the same way
// Example
function ourReusableFunction() {
console.log("Heyya, World");
}
ourReusableFunction();
// Only change code below this line
function myFunction(){
reusableFunction(){
console.log("Hi World");
}
}
This message was deleted
function cpu() { //CPU move chosen from random choice var
if (userX) {
if (answer.indexOf("A") >= 0 && answer.indexOf("C") >= 0) {
$("#B").text("O").css("color", "blue");
} else if (answer.indexOf("A") >= 0 && answer.indexOf("I") >= 0) {
$("#E").text("O").css("color", "blue");
} else if (answer.indexOf("A") >= 0 && answer.indexOf("G") >= 0) {
$("#D").text("O").css("color", "blue");
} else if (answer.indexOf("B") >= 0 && answer.indexOf("H") >= 0) {
$("#E").text("O").css("color", "blue");
} else if (answer.indexOf("C") >= 0 && answer.indexOf("I") >= 0) {
$("#F").text("O").css("color", "blue");
} else if (answer.indexOf("C") >= 0 && answer.indexOf("G") >= 0) {
$("#E").text("O").css("color", "blue");
} else if (answer.indexOf("D") >= 0 && answer.indexOf("F") >= 0) {
$("#E").text("O").css("color", "blue");
} else {
$("#" + choice + "").text("O").css("color", "blue");
cpuAnswer.push(choice.toUpperCase()); console.log(cpuAnswer);
}Here im saying if user moves to within 1 move of winning Get AI to take that winnning move... Are my if else statements correct?
My code is lagging with this and I dont think it works for some reason?
guys?
If I go to position A and C cpu freezes... It should go to B
i think you have to call your function @acloud12345678
refer to code above it your should be similar
it says that it was already called, but it says reusableFunction is not a function yet
it also says that it has to output "Hi World" to the dev console
you have 2 functions
I don't understand what you mean
function myFunction() should be function reusableFunction()
okay, that's one part, there is still another part,
reusableFunction should output "Hi World" to the dev console
call the function
repost your code @acloud12345678
ok
// Example
function ourReusableFunction() {
console.log("Heyya, World");
}
ourReusableFunction();
// Only change code below this line
function reusableFunction() {
reusableFunction(); {
console.log("Hi World");
}
}
@bnobo
myFunction() should look exactly like ourReusableFunction()
it doesn't work @erickzhao
look at the syntax in the example function
it should be the same in your function
// Example
function ourReusableFunction() {
console.log("Heyya, World");
}
ourReusableFunction();
// Only change code below this line
//this line below is where you named the function. Good!
function reusableFunction() {
//this line below is not needed
reusableFunction(); {
console.log("Hi World");
}//this bracket isnt needed either
}
a function is basically a reusable block of code
writing
reusableFunction(); on a line will execute all the code within the reusableFunction function declaration
@THalletProtech it doesn't work when I delete the line
@erickzhao i don;t know what you mean
repost code
// Example
function ourReusableFunction() {
console.log("Heyya, World");
}
ourReusableFunction();
// Only change code below this line
function reusableFunction() {
//this line below is not needed
console.log("Hi World");
}
looks good
now all you need to do is use the function so it wil return the value
how do I do that?
refer to last line of example
thanks @THalletProtech
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it finally worked
@erickzhao thanks for trying to help me as well
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@erickzhao whats up
hi
yw
why you up so lat @erickzhao
late*
lol
hi
function cpu() { //CPU move chosen from random choice var
if (userX) {
if (answer.indexOf("A") >= 0 && answer.indexOf("C") >= 0) {
$("#B").text("O").css("color", "blue");
} else if (answer.indexOf("A") >= 0 && answer.indexOf("I") >= 0) {
$("#E").text("O").css("color", "blue");
}
} else { //if human not 1 move from winning pick randomly
$("#" + choice + "").text("O").css("color", "blue");
cpuAnswer.push(choice.toUpperCase()); console.log(cpuAnswer);
}Here im saying if user moves to within 1 move of winning Get AI to take that winnning move... Are my if else statements correct?
My code is lagging with this and I dont think it works for some reason?
If I go to position A and C cpu freezes... It should go to B
@123xylem whats the rest of the code?
@hippybear
@hippybear ah my id boxes are lower case
Hey guys do any one knows, why there is a zero at the end of the function var singleVal = array.reduce(function(previousVal, currentVal) {
return previousVal - currentVal;
}, 0);
return previousVal - currentVal;
}, 0);
-.-
..
@mejiaadonay 0 means the type
@mejiaadonay i was wondering that earlier
@mejiaadonay what do you want the reduced thing to be - 0 is a number - it means start at 0 - and the result will also be a number
Ok because I complete the challenge, to add all elements together, and I didn't add any number at the end, and it works perfectly fine. But thanks guys. var array = [4,5,6,7,8];
var singleVal = 0;
// Only change code below this line.
singleVal = array.reduce(function(previousVal, currentVal) {
return previousVal + currentVal;
});
Hey can anyone help me with debugging this Javascript code? It seems my issue is on "Line 126" Synthax Error: Unexpected End... Yet everything seems to be there to my eyes at least
//variables section
var canvas;
var canvasContext;
var ballX = 50;
var ballY = 50;
var ballSpeedX = 10;
var ballSpeedY = 4;
var paddle1Y = 250;
const PADDLE_HEIGHT = 100;
// C Programming #define (ALWAYS CONSTANT)
/*
Observing returning event (evt) of mouse positioning coordinates in relation to where the mouse is on the "gameCanvas"
For example starting point on the "gameCanvas" is on (0,0) on the (y,x) axis
EventListener wouldn't care about mouse position or "mousePos" if this code wasn't here
Two piece of data are being returned here... mouseX and mouseY
*/
function calculateMousePos(evt) {
var rect = canvas.getBoundingClientRect();
var root = document.documentElement;
var mouseX = evt.clientX - rect.left - root.scrollLeft;
var mouseY = evt.clientY - rect.top - root.scrollTop;
return {
x:mouseX,
y:mouseY
};
}
//variables section
//Speed of objects & EventListener & Resetting the Ball section
window.onload = function () {
canvas = document.getElementById('gameCanvas');
canvasContext = canvas.getContext('2d');
var framesPerSecond = 30;
setInterval(function() {
moveEverything();
drawEverything();
}, 1000/framesPerSecond );
canvas.addEventListener('mousemove',
function(evt) {
var mousePos = calculateMousePos(evt);
paddle1Y = mousePos.y-(PADDLE_HEIGHT/2); //So players mouse and paddle relationship position is center
});
}
function moveEverything() {
ballX = ballX + ballSpeedX;
ballY = ballY + ballSpeedY
if(ballX < 0) {
if(ballY > paddle1Y &&
ballY < paddle1Y+PADDLE_HEIGHT) {
ballSpeedX = -ballSpeedX;
} else {
ballReset(); }
if(ballX > canvas.width) {
ballSpeedX = -ballSpeedX;
}
if(ballY < 0) {
ballSpeedY = -ballSpeedY;
}
if(ballY > canvas.height) {
ballSpeedY = -ballSpeedY;
}
//Speed of objects & EventListener & Resetting the Ball section
//Ball Reset f(x) section
function ballReset() {
ballSpeedX = -ballSpeedX;
ballX = canvas.width/2;
ballY = canvas.height/2;
}
//Ball Reset f(x) section
//canvas arguments/parameters
function drawEverything () {
// next line blanks out the screen with black
colorRect(0,0,canvas.width,canvas.height,'black');
// this left player paddle
colorRect(0,paddle1Y,10,100,'white');
// next line draws the ball
colorCircle(ballX,ballY,10,'white');
}
function colorCircle(centerX, centerY, radius, drawColor) {
canvasContext.fillStyle = drawColor;
canvasContext.beginPath();
canvasContext.arc(centerX, centerY, radius, 0,Math.PI*2,true);
canvasContext.fill();
}
function colorRect(leftX,topY, width,height, drawColor) {
canvasContext.fillStyle = drawColor;
canvasContext.fillRect(leftX,topY, width,height);
}
//canvas arguments/parameters
-.-
Hello,
@Surya96t ?
I'm having trouble in understanding string immutability and I'm not sure what needs to be fixed in this code // Setup
var myStr = "Jello World";
// Only change code below this line
myStr[0] = "H"; // Fix Me
Hey there, having some problems with the Seek and Destroy challenge. I read the page that talks about argument objects, and thought I could start out by using a loop and pushing everything into an array. Turns out the first part of "arguments" is an array when you look at it but isn't treated as a separate thing when you run the loop, so that threw my whole reasoning out the window, and now I have no idea what to do next! Can anyone help?
function destroyer(arr) {
// Remove all the values
var firstArray = arguments;
for (var i = 0; i < arguments.length; i++) {
firstArray.push(arguments[i]);
}
return arr;
}
destroyer([1, 2, 3, 1, 2, 3], 2, 3);
@Surya96t Since strings are immutable, you can't change a character at a given index of a string. You have to build a new string, using your new character and the rest of the old string
@billpzt There's a link on the exercise page to the MDN entry for Arguments - that should have instructions to help you out
So I should assign a new string to myStr
@patricktownley yeah, that's the page I meant when I said I had read about argument objects!
@billpzt
var firstArray = Array.from(arguments)
Yea - that bit :)
@billpzt if you want
[1, 2, 3, 1, 2, 3] - the 1st arguments - just say arr(the parameter of the function)
@jamesmillerho Cool, never heard of that from function before...
is this correct
// Setup
var myStr = "Jello World";
// Only change code below this line
myStr = "Hello";
myStr[0] = "H"; // Fix Me
@Surya96t
// You need to totally rewrite the string - since it is immutable
my Str = "Hello World";
// or
myStr = myStr.replace("J","H");@billpzt if you want[1, 2, 3, 1, 2, 3]- the 1st arguments - just sayarr(the parameter of the function)
@jamesmillerho but the problem is I don't know in advance how many arguments they're going to give me. I know the first is supposed to be an array, but then how do I handle the others if I don't know how many of them there'll be? THat's why I thought of making a loop and pushing each thing into a new array, which didn't work as expected...
@billpzt Array.from(arguments) will take all
@billpzt Also bear in mind when you convert
arguments to an array in that exercise, the first element is an array, and the remaining elements are the elements to be added to it
@billpzt If you want every arguments OTHER than the first one -
arr - just use the common slice funcitonArray.from(arguments).slice(1);
@jamesmillerho Thank you
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@billpzt Array.from(arguments) will take all
@jamesmillerho cool, will try that
@patricktownley I know, that's a big part of what got me confused
Ok, will try this stuff out and see how it goes! Thanks @jamesmillerho @patricktownley
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@billpzt
Seek and Destroy answer for reference (but I won't explain -.-)
Seek and Destroy answer for reference (but I won't explain -.-)
function destroyer(arr){
var extra = Array.from(arguments).slice(1);
return arr.filter(function(a){return !extra.includes(a);});
}
destroyer([1, 2, 3, 1, 2, 3], 2, 3);
Arguments is literally all the arguments passed to the function. All you're saying is that your variable firstArray is
[1,2,3,1,2,3], 2, 3. It isn't an array. You already have the initial array, it's named as arr.
@billpzt
@DanCouper Still doesn't make much sense to me, but OK :smile:
@jamesmillerho I have access to the solution page on Github, but I wanted to understand the process :smile:
You always have that first array: you know, in advance, that the function will be given an array, plus 0 or more single numbers.
arr is that array. Those numbers aren't named
This message was deleted
else if (answer.indexOf("D") >= 0 && answer.indexOf("F") >= 0) {
$("#e").text("O").css("color", "blue");
if (answer.indexOf("E") >= 0 || cpuAnswer.indexOf("E") >= 0) {
$("#" + choice + "").text("O").css("color", "blue");
cpuAnswer.push(choice.toUpperCase());
}
}
else if (answer.indexOf("H") >= 0 && answer.indexOf("I") >= 0) {
$("#g").text("O").css("color", "blue");
if (answer.indexOf("G") >= 0 || cpuAnswer.indexOf("G") >= 0) {
$("#" + choice + "").text("O").css("color", "blue");
cpuAnswer.push(choice.toUpperCase());
}
}else {
$("#" + choice + "").text("O").css("color", "blue");
cpuAnswer.push(choice.toUpperCase());
console.log(cpuAnswer);
}http://codepen.io/123xylem/pen/JKqYZY?editors=0011
@DanCouper Well that's the point, if they aren't named I don't see any way to access them to use in a filter later!
@123xylem
:)
@jamesmillerho not helpful bro i seen it the first time
its a graphics issue
just needs a timeout to fix
@billpzt You can get them from the
arguments object:var elementsToRemove = Array.from(arguments).slice(1);
Inside a function,
arguments is a collection of all the arguments. But you can't do much with it because it isn't an array, so you need to make it into an array.
This message was deleted
thank you @ricardomga you really helped me man!
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@patricktownley So will the slice function
alter the original argument, leaving me with the array in one variable and the remaining arguments in another?
alter the original argument, leaving me with the array in one variable and the remaining arguments in another?
No, spice copies
Slice
@billpzt You already have the original array in the variable
arr
You do not ever want to change the actual arguments
The sky will rain blood
Etc etc
@DanCouper That's what I tried to do first with my loop, (get what's in arguments into an array) but instead of treating the actual array as one unit it started to copy each number in it one by one
Why doesn't javascript make mutating optional, like other languages
@ricardomga I did that I think.....```
function calculateMousePos(evt) {
var rect = canvas.getBoundingClientRect();
var root = document.documentElement;
var mouseX = evt.clientX - rect.left - root.scrollLeft;
var mouseY = evt.clientY - rect.top - root.scrollTop;
return {
x:mouseX,
y:mouseY
};
}
Well, I better think more about this before asking more questions, or go to sleep, it's 4 AM here already hahaha
Yes, but what you were doing was saying the variable you declared was the arguments, and then tried values into it
@DanCouper @patricktownley Thanks!
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@DanCouper I don't know what the heck I'm doing anymore, I better go to sleep and try again after I wake up :laughing:
What you wanted was the original array + the other numbers - how you get the other numbers is how @patricktownley said - use make an array from the arguments, then you can slice off a copy all bit the first
@billpzt it may take a while, but it will click eventually :)
A night's sleep always helps. Fresh approach to the problem
i agree @patricktownley
@DanCouper @patricktownley I see now I was ignoring the fact that the index was (1) and not (0), I kept thinking that line was about the initial array, the whole time you two were trying to explain to me something and I was thinking of something else!
Ah, I see where the confusion came from. :)
Well, now I've got some thinking to do before I go asking more questions. Thanks again! Good night (or morning or evening or whatever it is where you are)
p.globalCompositeOperation = "source-over";
p.fillStyle = "rgba(0, 0, 0, 0.5)";
p.fillRect(0,0,w,h);
p.globalCompositeOperation = "lighter";p.fillStyle = "rgba(0, 0, 0, 0.5)"; gives the effect?
Hey could someone help me out a bit?I am doing Basic Algorith Scripting and am struggling a bit on the "Return Largest Numbers in Arrays" Here's what I have
function largestOfFour(arr) {
var results =[];
for (i = 0 ; i<arr.length; i++){
var largestNumber;
for(j = 0 ; j<arr[i].length; j++){
if(arr[i][j]>largestNumber){
largestNumber=arr[i][j];
results+=[largestNumber];
}
}
}
return results;
}
largestOfFour([[4, 5, 1, 3], [13, 27, 18, 26], [32, 35, 37, 39], [1000, 1001, 857, 1]]);
@jadczakd : Almost there mate!
I know the iterations are ok. Just don't know how to print the result into results haha
your results is an Array. Not a string or number.
results+=[largestNumber];is not how you add elements to the array
I know the results += in the example given is wrong, as it would in theory print all the numbers, If it ever printed anything.
you'd have to use
.push function.
Allright! cheers, I think I have it! That was quick!
:D
Hi. I don't understand what I am supposed to do.... I'm on Chapter "Record Collection" of JavaScript..... And the task is quite vague.... If someone can explain is to me or can give me any kind of Hint...
@adityaparab Thanks mate. Done!
function largestOfFour(arr) {
var results =[];
for (i = 0 ; i<arr.length; i++){
var largestNumber = 0;
for(j = 0 ; j<arr[i].length; j++){
if(arr[i][j]>largestNumber){
largestNumber=arr[i][j];
}
}
results.push(largestNumber);
}
return results;
}
largestOfFour([[4, 5, 1, 3], [13, 27, 18, 26], [32, 35, 37, 39], [1000, 1001, 857, 1]]);I know there is a Math.max() as well, although I find it rather problematic to put it to work with multi-dimensional arrays, any pointer as to how to?
jadczakd sends brownie points to @adityaparab :sparkles: :thumbsup: :sparkles:
:cookie: 635 | @adityaparab |http://www.freecodecamp.com/adityaparab
Hi, I tried the Title Case a Sentence Challenge and the console's answer looks correct but I'm not completing the challege
function titleCase(str) {
var arrStr= str.split(" ");
var titleStr=[];
for (var i=0;i<arrStr.length;i++){
titleStr += arrStr[i].charAt(0).toUpperCase() + arrStr[i].slice(1).toLowerCase();
titleStr+= " ";
}
titleStr.trim();
return titleStr;
}
titleCase("sHoRt AnD sToUt");
@jadczakd : Perfect mate!
Here is another way to do it. :D
function largestOfFour(arr) {
return arr.map(function(a){
return Math.max.apply(null, a);
});
}
@moyo92 : Is there any specific case that is failing?
What is this asking us to do?
@moyo92 : Okay, it's strange that the console output look correct.
Your titleStr is an
Your titleStr is an
Array. titleStr += is not how you add elements to the array. You will need to use .push instead.
@Elizso : Basically, It is asking you to convert that switch chain into an Object. You need to construct your object in such a way that the case name is the key and the value that you assign to result in each case is the corresponding value of that key.
Then you query this object using
val (the key) and return value for that key.
This message was deleted
function cpu() { //CPU move chosen from random choice var
if (userX) {
if (choices.length < 1) {
alert("DRAW GAME");
end();
}
if (answer.indexOf("A") >= 0 && answer.indexOf("C") >= 0&& answer.indexOf("B") <= 0 || cpuAnswer.indexOf("B") <= 0) {
$("#b").text("O").css("color", "blue");
cpuAnswer.push(choice.toUpperCase());
} else if (answer.indexOf("A") >= 0 && answer.indexOf("I") >= 0&& answer.indexOf("E") <= 0 || cpuAnswer.indexOf("E") <= 0) {
$("#e").text("O").css("color", "blue");
cpuAnswer.push(choice.toUpperCase());
} else if (answer.indexOf("A") >= 0 && answer.indexOf("G") >= 0&& answer.indexOf("D") <= 0 || cpuAnswer.indexOf("D") <= 0) {
$("#d").text("O").css("color", "blue");
cpuAnswer.push(choice.toUpperCase());
} else if (answer.indexOf("B") >= 0 && answer.indexOf("H") >= 0&&answer.indexOf("E") <= 0 || cpuAnswer.indexOf("E") <= 0) {
$("#e").text("O").css("color", "blue");
cpuAnswer.push(choice.toUpperCase());
}
else if (answer.indexOf("C") >= 0 && answer.indexOf("I") >= 0&&answer.indexOf("F") <= 0 || cpuAnswer.indexOf("F") <= 0) {
$("#f").text("O").css("color", "blue");
cpuAnswer.push(choice.toUpperCase());
} else if (answer.indexOf("C") >= 0 && answer.indexOf("G") >= 0&&answer.indexOf("E") <= 0 || cpuAnswer.indexOf("E") <= 0) {
$("#e").text("O").css("color", "blue");
cpuAnswer.push(choice.toUpperCase());
} else if (answer.indexOf("C") >= 0 && answer.indexOf("B") >= 0&& answer.indexOf("A") <= 0 || cpuAnswer.indexOf("A") <= 0) {
$("#a").text("O").css("color", "blue");
cpuAnswer.push(choice.toUpperCase());
}
else if (answer.indexOf("E") >= 0 && answer.indexOf("F") >= 0&&answer.indexOf("D") <= 0 || cpuAnswer.indexOf("D") <= 0) {
$("#d").text("O").css("color", "blue");
cpuAnswer.push(choice.toUpperCase());
}
else if (answer.indexOf("D") >= 0 && answer.indexOf("F") >= 0&&answer.indexOf("E") <= 0 || cpuAnswer.indexOf("E") <= 0) {
$("#e").text("O").css("color", "blue");
cpuAnswer.push(choice.toUpperCase());
}
else if (answer.indexOf("H") >= 0 && answer.indexOf("I") >= 0&&answer.indexOf("G") <= 0 || cpuAnswer.indexOf("G") <= 0) {
$("#g").text("O").css("color", "blue");
cpuAnswer.push(choice.toUpperCase());
}
else {
$("#" + choice + "").text("O").css("color", "blue");
cpuAnswer.push(choice.toUpperCase());
console.log(cpuAnswer);
}}
if (cpuAnswer.indexOf("A") >= 0 && cpuAnswer.indexOf("B") >= 0 && cpuAnswer.indexOf("C") >= 0) {
alert("you win!");
setTimeout(function() { end() }, 400);
} else if (cpuAnswer.indexOf("D") >= 0 && cpuAnswer.indexOf("E") >= 0 && cpuAnswer.indexOf("F") >= 0) {
alert("Cpu win!");
setTimeout(function() { end() }, 400);
} else if (cpuAnswer.indexOf("G") >= 0 && cpuAnswer.indexOf("H") >= 0 && cpuAnswer.indexOf("I") >= 0) {
alert("Cpu win!");
setTimeout(function() { end() }, 300);
} else if (cpuAnswer.indexOf("A") >= 0 && cpuAnswer.indexOf("D") >= 0 && cpuAnswer.indexOf("G") >= 0) {
alert("CPU win!");
setTimeout(function() { end() }, 300);
} else if (cpuAnswer.indexOf("B") >= 0 && cpuAnswer.indexOf("E") >= 0 && cpuAnswer.indexOf("H") >= 0) {
alert("CPU win!");
setTimeout(function() { end() }, 300);
} else if (cpuAnswer.indexOf("C") >= 0 && cpuAnswer.indexOf("F") >= 0 && cpuAnswer.indexOf("I") >= 0) {
alert("CPU win!");
setTimeout(function() { end() }, 400);
} else if (cpuAnswer.indexOf("A") >= 0 && cpuAnswer.indexOf("E") >= 0 && cpuAnswer.indexOf("I") >= 0) {
alert("CPU win!");
setTimeout(function() { end() }, 400);
} else if (cpuAnswer.indexOf("C") >= 0 && cpuAnswer.indexOf("E") >= 0 && cpuAnswer.indexOf("G
This message was deleted
@adityaparab Nope, it all works well. If you don't mind my asking, how do you copy the text editor?
Hi. I don't understand what I am supposed to do.... I'm on Chapter "Record Collection"..... And the task is quite vague.... If someone can explain is to me or can give me any kind of Hint...
Record Collection
You are given a JSON object representing a part of your musical album collection. Each album has several properties and a unique id number as its key. Not all albums have complete information.
Write a function which takes an album's id (like 2548), a property prop (like "artist" or "tracks"), and a value (like "Addicted to Love") to modify the data in this collection.
If prop isn't "tracks" and value isn't empty (""), update or set the value for that record album's property.
Your function must always return the entire collection object.
There are several rules for handling incomplete data:
If prop is "tracks" but the album doesn't have a "tracks" property, create an empty array before adding the new value to the album's corresponding property.
If prop is "tracks" and value isn't empty (""), push the value onto the end of the album's existing tracks array.
If value is empty (""), delete the given prop property from the album.
@cristiantoporascu Let me get you some info.
@cristiantoporascu https://gist.github.com/revisualize/123deb77d85079f079020ac3cd6ea5ba
@cristiantoporascu It's basically the instructions.
@Joseph Thank you very much. I'll try and see if it works.
@cristiantoporascu If a variable
name is "Joseph" console.log "Joseph is awesome".if (name === "Joseph") {
console.log("Joseph is awesome");
}
I'm a little intoxicated. Let me fix that.
Fixed!
any short explanation about the differnce between classes and constructors?
@cristiantoporascu So, What's your function.
@danydin hashtag-nope.
why @cryin
@revisualize pleasee joseph everyone is sleepin
@danydin Do you realize that it is 202am in Seattle.... AND!!! I am in this chat room.... Let's just say that I am ... NOT ... the most... sober of individuals.
ya i belive but ur pro enough to handle it even thats late :p
are you really so passionated about it that you are here so late?!
I can google some bull:ship: for you. smiley face?
i've done it just made it harder for me to grasp
and 5 extra tabs to the already 539058430 tabs opened
Okay... So... A constructor vs a class
yay <3
I really wish @llamatarianism was awake.
xd
Let's see.
who can help me with tests jasimne??
i asked for outside help
i need a freakin* mentor @revisualize
me too.
sure lets make tandem then
But! I am drunk.
from?
ok what's the issue
I'd seriously be like the worst mentor ever.
YAY!
@danydin !
your pray has been workin out hopefully
our*
Ask your crazy quesiton.
u wanna know wats a class constructor??
@danydin
@polak90 !!!!
yess
Class vs Constructor!
im lost
SMART PEOPLE!
YAY!
Seriously... I just cheered.. I'm in a bar eating food and I just cheered out loud.
well, first thing.... this is JS not java - so, class in JS is 'sugar' and doesn't mean the same thing (I think I've said that sentence three times today - at least in es6 where you will see that terminology )
also
// AddressBook is a class?
function AddressBook() {
this.contacts = [];
}
// is this creats a custom function under AddressBook construcotr?
AddressBook.prototype.addContact = function(contact) {
this.contacts.push(contact);
}
@qmikew1 i don't know java but i've read its diff than in java and c++
hang on a second
sure
JOURNEY!
HER WE STAND!
WORLDS APART!
a constructor does not belong to any class it is used to define a class
HEARTS BROKEN IN TWO... TWO ... TWO!
it's an object
but hang on
@polak90 ok collberate please :)
and sure @qmikew1
yes it's a constructer - but it has different properties because it's a constructor vs an object literal
oh nooo
I think you should read that @danydin
im scared from those links
no
ya when i see mdn
ok, if you read the first few lines of the paragraph you'll have your answer
YOU ASKED A HARD QUESTION!
You get MDN links!
but I was going to walk you through this (also even better I'm going to recommend YDKJS series)
You don't know Jack ... :ship:
i need to bew drunk like you @revisualize to be able to undersatnd whats going on there
so, I want you to get the 'class' part out of your head for a second ...because that's typical and is going to make your brain explode
i've read the first series from the book was good actaully but needed a break from it afterwards :p
ok its out now @qmikew1
the code u have written is better
are you sure?
yes
refer to this
its about not duplicating and consuming memory allocation
um, that's called premature optimization
mm looks interasting @polak90 thanks
danydin sends brownie points to @polak90 :sparkles: :thumbsup: :sparkles:
:cookie: 140 | @polak90 |http://www.freecodecamp.com/polak90
@qmikew1 ok
hello people
don't worry about that stuff at this point. Concentrate on basics
ya i belive this way as well
using prototype function actually is the right way to do it
unction Dog(name, type){
this.name = name;
this.type = type;
this.bark = function(){
alert(this.name + " barks");
};
this.growl = function(){
alert(this.name + " growls");
};
this.getBreed = function(){
return this.type;
};
}
var lassie = new Dog("Lassie", "Collie");
lassie.bark(); // Lassie bark
lassie.growl(); // Lassie growls
var breed = lassie.getBreed(); // Collie
var rintintin= new Dog("Rin Tin Tin", "German Shepard");
rintintin.bark(); // Rin Tin Tin barks
rintintin.growl(); // Rin Tin Tin growls
var breed = rintintin.getBreed(); // German Shepard
this is not good...............
@polak90 ok, I've done exercises
those
so, okey dokey
function Dog(name, type){
this.name = name;
this.type = type;
}
Dog.prototype.bark = function(){
alert(this.name + " barks");
}
Dog.prototype.growl= function(){
alert(this.name + " growls");
}
Dog.prototype.getBreed = function(){
return this.type;
}
var lassie = new Dog("Lassie", "Collie");
lassie.bark(); // Lassie barks
lassie.growl(); // Lassie growls
var breed = lassie.getBreed(); // Collie
var rintintin= new Dog("Rin Tin Tin", "German Shepard");
rintintin.bark(); // Rin Tin Tin bark
rintintin.growl(); // Rin Tin Tin growls
var breed = rintintin.getBreed(); // German Shepard
Quick visualizing tool for those struggling with RedExp :https://regexper.com/#%2F(%5Bword%5D)%5Cd%5C-%2Fgim
this is right...................
anywho, @revisualize the JS channel is interesting for shure
sure*
ah cool now i see the two options face to face @polak90
:)
cool
@danydin finish YDKJS
makes much more sense.. it's for memory saving in large applcaitons right
happy to help
true kinda
This message was deleted
oh mam 3 bombs in 10mins :p ya i will but i've so many thigns on my head
im learning jasmine, git, working on a proecjt i've started with a team from scartch and those now :D
ok, hang on a second. You guys are in the very early stages of the basic JS section is this correct? why are you talking about optimizing etc.? not that, that is bad... but how do you conceptually know about this? - seriously focus on concepts first
closures are very confusing,any good reference
he he i have JS in the past
i am new to freecodecamp
am basically an embedded linux developer
@Chan11 There are some amazing youtube videos about closures.
and new to web development
so joined here
but i have done code opti for C C++ and python source
@revisualize
function updateRecords(id, prop, value) {
if (value === '') {
delete collection[id][prop];
} else if (prop !== 'tracks') {
collection[id][prop] = value;
} else {
collection[id][prop].push(value);
}
One task is still not being checked and I don't get it why...
and JS is not new to me
you'd have fun with kernel
can some 1 help me
im on
Assignment with a Returned Value in JS
@revisualize :+1:
I'm currently doing the algorithm Truncate a string and i have no idea what to write. Could anyone give me some hints or methods to finish this challenge??
the instructions arent clear really
i write device drivers as a job
lol
and i work on yocto project
MY TAXI has arrived.
what kind of embedded devices are you working with (that are running linux)
this is help forum
:v:
for help
i need help lol
imx 6
im on Assignment with a Returned Value
technologic systems boads
intro to java script
some prototype on beagle boards
...
@moyo92 : Yeah, checked your code, you'd need to do either
titleStr = titleStr.trim();
return titleStr;or simply
return titleStr.trim();
some more work on q7 module SoMs
similar stuff
how come you're working on front end web stuff?
vis-a-vis curriculum
he he just to keep me engaged
i already know a bit of web dev
done some in the past on LAMP stack
node is very cool
@ReadyDoMe show your code
now playing around with python django stack too
so what exactly is this thing doing?
@polak90 : Get
engaged (and never marry) you won't have to worry about it for the rest of your life
@adityaparab wat are u getting at?
Node is the best aphrodisiac
have you been drinking @adityaparab
?
@qmikew1 : I'm high on life mate! No need to drink ;)
@jamesmillerho did u use svg???
good evening everyone
@adityaparab yeah thanks, I got it, there was a trailing space. Now trying to "Confirm the Ending"
can this forum please only be for helop
moyo92 sends brownie points to @adityaparab :sparkles: :thumbsup: :sparkles:
:cookie: 636 | @adityaparab |http://www.freecodecamp.com/adityaparab
and not general chat?
we should be helping not just chatting js
....
@polak90 no
cause i actually need help
cool
Hi all, I'm totally stuck with Title Case a sentence challange, anyone able to help me? at least with the plan and order of tasks to be done
mostly canvas then i guess
that looks cool
@jamesmillerho
@moyo92 : Yeah.. that's because the
.trim returns new modified string and doesn't modify the actual string you called the function on.
@polak90 seriously? move this convo to general chat if you aren't here to help or ask for help.
canvas > svg
i was helping just few mins back
if u hadnt notices
i didnt
noticed
i saw u talking
not my bad
about some crap u do for work lol
you need to ask about @someone!
any 1 able to help with javascript
ya right crap for u
im on
assignment witha returned value
@polak90 leave if ur arent helping or ask for help. this is the help chat
@ReadyDoMe - how can you expect one to help if you don't post your question (or your question is buried under the pile of wisdom)?
@ReadyDoMe you're being really rude
:fire:
@qmikew1 u were the 1 chatting it up with her so ur defense is mute.
Grabs popcorn!
are u like an admin @ReadyDoMe
lol
@adityaparab i asked and then they kept talking about painting their nails
Assignment with a Returned Value
@adityaparab lol
is what i am on
i received brownie points for helping some one just few mins back
in java script
i need help
same here I did ask something and nothing has happened
lol
@ReadyDoMe
@adityaparab i asked and then they kept talking about painting their nails
Let me guess,, are you American?
@AdamTakacs05 yeah because @polak90 thinks this is fucking AOL instant messanger
Anyway, mid asking your question again? @ReadyDoMe
@adityaparab Assignment with a Returned Value
in java script
i think its intro to java script
@ReadyDoMe : Post your code!
@adityaparab // Only change code below this line
var processArg = 7;
var processed;
function processArg(num){
return (processed);
}
not really sure what its asking
@AdamTakacs05 what is the problemo?
the directions are really unclear.
so, anyway... clearly you don't understand how this works. People help you because they are nice or volunteering to do so ... drop the entitlement and it works much better
Would mind posting directions again?/
@qmikew1 GTFO IF U ARENT HERE TO HELP OR ASK FOR HELP FUCK
troll
@adityaparab Assume we have pre-defined a function sum which adds two numbers together, then:
ourSum = sum(5, 12);
will call sum function, which returns a value of 17 and assigns it to ourSum variable.
Instructions
Call the processArg function with an argument of 7 and assign its return value to the variable processed.
:trollface: troll problems? notify admins here
@qmikew1
so, anyway... clearly you don't understand how this works. People help you because they are nice or volunteering to do so ... drop the entitlement and it works much better
That's exactly what makes me wonder if he's American :P
@ReadyDoMe processArg is the name of your function
:sweat_smile:
@wearenotgroot it says to call it
and I'm not here to ask for help
dumba^^
@qmikew1 i swear to god
see my finger?
@ReadyDoMe :
All you need is this
function processArg(num){
return num;
}
no one cares anymore help, or ask gtfo
@lunjwaba1 Im at title case a asentence challange and im totally stuck...i wuld need a plan at least or just an approach so I can figure it out but i have no idea, i tried with for loops i guess that is essential but somehow i just cant understand the whole thing
@ReadyDoMe calling/executing the function--> function name + ()
processArg(...); //<----------
@adityaparab huh
@adityaparab it says argument of 7...
// Example
var changed = 0;
function change(num) {
return (num + 5) / 3;
}
changed = change(10);
// Setup
var processed = 0;
function processArg(num) {
return (num + 3) / 5;
}
processed = processArg(7);
there u go
was it hard?
simple as FFFFF
u rude sob
@polak90 : No direct answers please. You focus on getting
engaged.
not to me, mind you.. I'm shy
@adityaparab flirty sleazy sexist douche u are
gtfo
u are not helping
@polak90 Thank you :D
adityaparab sends brownie points to @polak90 :sparkles: :thumbsup: :sparkles:
:cookie: 141 | @polak90 |http://www.freecodecamp.com/polak90
@polak90 : You aren't helping either. You're just posting direct answers. Which to me sounds more like spoon feeding than helping :D
ya he deserved it
becuz he was being a cry baby
@AdamTakacs05 turn the string into an array first
it was the simplest of tasks
polak
u helped
like
he has never heard of C
i guerss
this is a room for help
u are sitting here blabbering on
burying other people who actually need help
no one cares
@ReadyDoMe : knock it off mate!
ya i have been helping ppl since yesterday
get that Donald Trump outta yo ass :D
and got brownie points consistently
@lunjwaba1 I did that already yeah that seemed obvious
@ReadyDoMe gotten your point through, please can't you be cordial man
ppl need to read task properly and ask help for wats worth
rest u can google
@polak90 is great, she found me super tutorial :D
and it is simple concept
return value of function
learn c
Just like Learning Chinese for the first time :D
return by value
@AdamTakacs05 turn everthing into lowerCase
return by pointer
and more
then u wud understand basics of it
@polak90
return by pointer
Nope! By reference
ya reference
i know
good!
and there is pointers too
its about perception
Reference and pointers are two different things. If you've ever done Assembly :laughing:
@lunjwaba1 yes, done!
some work on c and they never heard of make utility or file dreadful
ya ok got ur point
@AdamTakacs05 you got the for loop, and look into the "charAt" method
i work on both
ya ok got ur point
or point(er) ;)
How can i access the last 2 numbers ? destroyer([1, 2, 3, 1, 2, 3], 2, 3);
@AdamTakacs05 you can loop through the first character of each array element and make it uppercase
@lunjwaba1 I see ok I try that!
Thank you @lunjwaba1
adamtakacs05 sends brownie points to @lunjwaba1 :sparkles: :thumbsup: :sparkles:
:cookie: 289 | @lunjwaba1 |http://www.freecodecamp.com/lunjwaba1
@hacu9 check out arguments object ----->https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Functions/arguments
@hacu9 :
var allExceptFirst = Array.prototype.slice.call(arguments, 1);will give you last elements.
@polak90 Please don't post full challenge solutions for people asking questions. The room is HelpJavaScript, not SpoilersJavaScript :)
@BKinahan THANK YOU
readydome sends brownie points to @bkinahan :sparkles: :thumbsup: :sparkles:
:star2: 2317 | @bkinahan |http://www.freecodecamp.com/bkinahan
@polak90 There is also a CodeReview room where that kind of thing is what people are looking for, if you're interested.
@adityaparab @wearenotgroot thanks
hacu9 sends brownie points to @adityaparab and @wearenotgroot :sparkles: :thumbsup: :sparkles:
:cookie: 637 | @adityaparab |http://www.freecodecamp.com/adityaparab
:star2: 1476 | @wearenotgroot |http://www.freecodecamp.com/wearenotgroot
YAY! more smart people!
@hacu9 :+1:
Guess what.. I also cured my hiccups.
I just held my breath and burped a bunch while holding my breath.
It was kind of gross.
@revisualize :clap:
From top or from the bottom?
@revisualize congrats :+1:
I usually only ever hiccup once.. Pretty lucky that way :D
Oh Em Gee.. It is almost 3am.
hashtag-bed.time.
it's also important to note why the arguments object is being converted into an actual array (or context) - because you can't do much with former
almost 5am
@lunjwaba1 It is almost 3am in Seattle. And.. I just got home. So.. yeah. me + bed = :zzz:
If "===" compares for value and type. How would I handle the same comparison but expressed as literally greater than? E.g. ">==" ?
It's 3.30 pm here!
still me me + bed
ugh
@gk0r you would need a separate comparison for type
some of these challenges are not very specific
im having problem with Stand in Line
@adityaparab where is "here"?
challenge.
HEY!
good morning: its my first time using the chat. and i am stuck with one fcc example. i dont understand what the task : https://www.freecodecamp.com/challenges/record-collection
Write a function nextInLine which takes an array (arr) and a number (item) as arguments. Add the number to the end of the array, then remove the first element of array. The nextInLine function should then return the element that was removed.
@gk0r : like
>== or <==
@revisualize I can help with that.
@ReadyDoMe
@chokolate OH! I can help with that too.
@ReadyDoMe are you familiar with the array methods
push / pop, shift / unshift?
One second!
oh yeah
How to do code block format:
```js [SHIFT+ENTER]
// your code here
```[CTRL+ENTER or CMD+ENTER to send]
Please do not confuse `s with 's.
Also note that the ```s need to each be on their own lines
The ` key can usually be found on most keyboards up next to the 1 key.
If you hit SHIFT+` it will give you the ~.
Example:
```
code
```
...
Output:
var code = undefined;...
You can also do inline code formatting:
A string of text with a `variable` or `other bit of code`.
Output:
A string of text with a variable or other bit of code.
AND!
DONE!
I helped!
Hi, in the "Confirm the Ending" challenge, why should confirmEnding("Open sesame", "same") return true. This is the case failing my code
@revisualize : Take your brownie points and go home! Thanks :D
adityaparab sends brownie points to @revisualize :sparkles: :thumbsup: :sparkles:
:star2: 1761 | @revisualize |http://www.freecodecamp.com/revisualize
@moyo92 because the string
"Open sesame" ends with "same". See the last four letters? They're the same ;)
@revisualize ugh man java script is so hard
@moyo92 : Where is your code?
@revisualize i just feel like a compelete idiot wrote it
@adityaparab
function confirmEnding(str, target) {
// "Never give up and good luck will find you."
// -- Falcor
var strArr = str.split(" ");
//console.log(strArr.length);
if(strArr.length == 1){
return (str.substring(str.length -1) === target);
}
else{
//console.log(strArr[(strArr.length) -1]);
return (strArr[(strArr.length) -1] === target);
}
}
// "Never give up and good luck will find you."
// -- Falcor
var strArr = str.split(" ");
//console.log(strArr.length);
if(strArr.length == 1){
return (str.substring(str.length -1) === target);
}
else{
//console.log(strArr[(strArr.length) -1]);
return (strArr[(strArr.length) -1] === target);
}
}
@revisualize go to bed :P
@ReadyDoMe If you feel that way.. It is true.
@ReadyDoMe well it was initially written in a week
@revisualize like it doesn't need to be THIS complicated
@adityaparab here: function confirmEnding(str, target) {
// "Never give up and good luck will find you."
// -- Falcor
var strArr = str.split(" ");
//console.log(strArr.length);
if(strArr.length == 1){
return (str.substring(str.length -1) === target);
}
else{
//console.log(strArr[(strArr.length) -1]);
return (strArr[(strArr.length) -1] === target);
}
}
// "Never give up and good luck will find you."
// -- Falcor
var strArr = str.split(" ");
//console.log(strArr.length);
if(strArr.length == 1){
return (str.substring(str.length -1) === target);
}
else{
//console.log(strArr[(strArr.length) -1]);
return (strArr[(strArr.length) -1] === target);
}
}
@ReadyDoMe It isn't complicated. It is just two lines of code.
@ReadyDoMe Can you answer the two questions posted in the link?
@moyo92 You don't need to split it. You can take a look at
.substr function and read about what positive and negative parameters mean.
the instructions on the challenge arent clear at all.
add the number to the end of the array...WHAT NUMBER
@ReadyDoMe Yes they are!
it just assumes im gunna know what that means???
@moyo92
"Never give up and good luck will find you."
@ReadyDoMe // an array (arr) and a number (item) as arguments.
@ReadyDoMe Read the instructions.
argument
is what goes in () of the function right?
@ReadyDoMe The instructions are very clear.
so function nextInLine (arr, item){}
@chokolate the function you create should be able to update the collection, either by deleting a property e.g. "artist" (if the "value" parameter is empty "")
right?
@ReadyDoMe Yes.
@adityaparab I tried that, but the test is coming back with an error. I must be doing something wrong https://github.com/Rafase282/My-FreeCodeCamp-Code/wiki/Lesson-Returning-Boolean-Values-From-Functions
@ReadyDoMe Yeah, arguments were covered a few challenges earlier in https://www.freecodecamp.com/challenges/passing-values-to-functions-with-arguments
Review that one if you need a refresher :)
ok...but
it says
add number to end of array
how would i do that
@adityaparab thanks, I see it now, I should be comparing the target with the same length of characters in str...not comparing the last word
moyo92 sends brownie points to @adityaparab :sparkles: :thumbsup: :sparkles:
:warning: moyo92 already gave adityaparab points
@ReadyDoMe How do you do that?
@ReadyDoMe : That is what you have
.push function for
@ReadyDoMe That's why I asked if you knew about the array methods
push / pop , shift/ unshift
@moyo92 : Correct!
@revisualize No need to shout ;) Go to bed already!
Hi Guys,
I was doing ...
https://www.freecodecamp.com/challenges/build-a-random-quote-machine
This is my pen:
http://codepen.io/Ishma-Reyhool/pen/pyZJvx
Could someone tell me why my color change feature at the very bottom isn't working.
an array (
arr) and a number (item) as arguments.
@chokolate (id,property,poperty -value) as parameters, e.g. they pass (5439,"artist","") delete "artist"
@ReadyDoMe Array docs here is the documentation for Array, including the list of methods that are available to you
Is there a way to remove the scroll bar on the right of my project?
@IshmaRey-Hool looks like you set
backItter to 1 every time the function runs.
@chokolate if the parameter has a property which isn't in the collection yet, add it
there was a horizontal bar. I used float: right to remove it
revisualize @revisualize storms off stage left. :zzz: :v: :fu: :wave: :v: :) :peach:
funny how :fu: was added to unicode before crossed-fingers
@BKinahan hehe.
@BKinahan it's universal and all that.I think that's the most famous gesture
:revolving_hearts::heartpulse::sparkling_heart::heartpulse::heartbeat::heart:
:ok_hand:
// this is the class?
var Person = function () {
// and this is the Constructor?
console.log('instance created');
};
Hı guys, I have a problem with code pen. I am getting XHR failed loading: GET but I am sure, I am doing right. What's wrong with codepen about xhr ? Thank
How would I solve the "Returning Boolean Values from Functions" lesson ?
@lunjwaba1 i c what u say
return this === that;
@Karayel share a link
@revisualize "===" is an exact match. This wants a check of less than
Which I thought might be along the lines of "<==" but that fails
@jamesmillerho overflow: hidden;
@gk0r So use less than.
@gk0r
<=
meh.
I'm supposed to be going to bed.
revisualize @revisualize leaves.
Thank you @revisualize
gk0r sends brownie points to @revisualize :sparkles: :thumbsup: :sparkles:
:star2: 1762 | @revisualize |http://www.freecodecamp.com/revisualize
@Karayel wheres ur problem its log the data
Can't figure out the STAND IN LINE challenge, can anyone help,thx.
@danydin wait a sec
@Altaryum // How do you add a number (item) to the end of an array (arr)?
// How do you remove the first element from an array (arr)?
// How do you remove the first element from an array (arr)?
revisualize @revisualize leaves.
Good night everyone.
@danydin when ı am typing something then click enter.I am getting this error from console VM3087 jquery.min.js:4XHR failed loading: GET "https://en.wikipedia.org/w/api.php?format=json&action=query&generator=searc…pilimit=max&exintro&explaintext&exsentences=1&exlimit=max&gsrsearch=asdfas"
@Karayel No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://s.codepen.io' is therefore not allowed access.
you need CORS
or jsonp
@danydin what is CORS
there is a limation to access 3rd domains servers
so those 2 methods are to bypass it
@danydin yea, I see it yesterday. I try it but the same error occurs
check cors on google if you want to get deeper in it
no way.. you've to change the code and then it will work
i am so stuk. i understand what the idea of the function is. but- am i writing code for each album of the collection?
@danydin I am looking at it. I will come back here later.
@ZZPot thanks
jamesmillerho sends brownie points to @zzpot :sparkles: :thumbsup: :sparkles:
:cookie: 318 | @zzpot |http://www.freecodecamp.com/zzpot
ok
@chokolate here is a hint, your function should be able to "search /loop " through each id/album and check for the properties and update accordingly.
Id has prop? : No/yes ,do this ...."else" do this
@Karayel firefox and chrome will prevent requests from an insecure (HTTP) address to a secure (HTTPS) address - this is always an issue when you try to test things locally. With FCC, the one that always comes up is the Weather project (the only available weather APIs are HTTPS). One way you can get around it is by using Safari (I think IE as well, I'm on a Mac atm, so I can't test that). The 'access-control' message that comes up sometimes is to do with the external site - if you controlled both, you could tell the external site to send a header back saying "yup, this content is fine to use". But that's almost never the case. Sometimes, you can just change the url of the thing you're trying to get from HTTPS to HTTP, but this is iffy, and doesn't work a lot of the time.
hi guys i need some help at repeat a string....
i mean : repeatStringNumTimes("", 3) should return "**".
and this is the code:
function repeatStringNumTimes(str, num) {
// repeat after me
return str;
}
repeatStringNumTimes("abc", 3);
hi
hello
Good evening fellow code mates, I'm stuck with the "GOLF code" assignment on javascript course. I can't seem to understand what the assignment is asking me.. By any chance anyone has recently completed it and would be willing to give me tips ( I'm not seeking full answer, I would like to understand it ! )
Thank you
Thank you
sorry i am a fresher who may not be able to solve your problem..
I am stuck too..
stuck on the Counting Cards
@nicopcat with the same task?
i can help u at counting cards
really??!
@nokia6290 nope sorry
@nokia6290 hold on , i remember i have been thru that task ,just hold on a second until my task solved
Howdy campers - so when is an array not an array? Can anyone explain why my Array fails a simple isArray test?! http://codepen.io/m4sterbunny/pen/oLKpXg
i didnt understood very well... but this is the code
var count = 0;
function cardValue (card) {
var zeroVal = card === 7 || card === 8 || card === 9;
if (zeroVal) return 0;
else if (typeof card === 'string' || card === 10) return -1;
else if (typeof card === 'number' || card !== 10) return 1;
}
function cc(card) {
// Only change code below this line
count += cardValue(card);
if (count > 0) return ${count} Bet;
else if (count < 0) return ${count} Hold;
else return ${count} Hold;
// Only change code above this line
}
@nicopcat thanks for that !
nokia6290 sends brownie points to @nicopcat :sparkles: :thumbsup: :sparkles:
:warning: could not find receiver for nicopcat
@nicopcat thx !
nokia6290 sends brownie points to @nicopcat :sparkles: :thumbsup: :sparkles:
:warning: could not find receiver for nicopcat
@DarkManeiac i thought it should be done with Switch
notrly
not rly... it cannot be solved very well, i tryed
@m4sterbunny an array is an array except when it is not an array.
Then it is an object.
:)
@revisualize Hey this is JS EVERYthing is an object!
seriously dude I copy pasted my array from record collection - to play with in code pen, but it is not an array?! Why oh why I am melting down here
seriously dude I copy pasted my array from record collection - to play with in code pen, but it is not an array?! Why oh why I am melting down here
I know.
;)
canvas is fun
i cant be solved with Switch sentence?
@DarkManeiac
i tryed... it didnt work to me
@Masana84 hasOwnProperty?
function testGreaterThan(val) {
if (val >10) { // Change this line
return "Over 100";
}
if (val >5) { // Change this line
return "Over 10";
}
return "10 or Under";
}
// Change this value to test
testGreaterThan(11);
is my code correct i can not pass the challenge can anyone help me please
hi guys
function cc(card) {
// Only change code below this line
count += cardValue(card);
if (count > 0) return ${count} Bet;
else if (count < 0) return ${count} Hold;
else return ${count} Hold;
// Only change code above this line
}
// Add/remove calls to test your function.
// Note: Only the last will display
cc(2); cc(3); cc(7); cc('K'); cc('A'); // 0 Hold
cc(10); cc('J'); cc('Q'); cc('K'); cc('A'); // -5 Hold
@nicopcat
@nicopcat It can:
switch(card) {
switch(card) {
case 2:
case 3:
i need help in solving record collection problem
i was given a JSON
@m4sterbunny look on my gist. I think youre actually looking for hasOwnProperty
var count = 0;
function cc(card) {
// Only change code below this line
switch(card) {
case 2:
case 3:
case 4:
case 5:
case 6:
return 5 + " " + "Bet";
case 7:
case 8:
case 9:
return 0 + " " + "Hold";
case 10:
case "J":
case "Q":
case "K":
case "A":
return -5 + " " + "Hold";
case 3:
case 7:
case "Q":
case 8:
case "A":
return -1 + " " + "Hold";
case 2:
case "J":
case 9:
case 2:
case 7:
return 1 + " " + "Bet";
case 3:
case 2:
case "A":
case 10:
case "K":
return -1 + " " + "Hold";
}
// Only change code above this line
}
// Add/remove calls to test your function.
// 提示: Only the last will display
cc(2); cc(3);
dont know how to solve it
Read that!
:)
thanks
no code there
can anyone help me with the smallest common multiple challenge? :( I'm stuck.. Here's the code I did with comments.
function smallestCommons(arr) {
var nums = [],primes = [2,3,5,7], multis = [];
for(var i = Math.min(arr[0],arr[1]); i <= Math.max(arr[0],arr[1]); i++){
if(i != 1){
nums.push(i);
}
}
for(var p = 0; p < primes.length; p){
for(var n = 0; n < nums.length; n++){
/*
check if nums[n] is divisible by primes[p].If true, change value of that
index and set p back to 0(this is to check the new values of 'nums' array)
*/
if((nums[n] % primes[p]) == 0){
nums[n] = nums[n] / primes[p];
p = 0;
/*
Problem: Need to only check if nums[n] is divisible by primes[p] only One times
per num[n] cycles, and not per nums[n] that are divisible by primes[p].
*/
}
//increment p if at last index of nums array
if(n == nums.length-1){
p++;
}
}
}
return multis.concat(nums);
}
console.log(
smallestCommons([1,5])
)
@da7thsin use
```js
pls anyone help me on record collection problem
@vijayirtt59 yes
@vijayirtt59 did you want me to gift you the answer? Or did you want to actually learn the material?
@vijayirtt59 what do u have so far
@da7thsin this is not about divisible by primes but all number within 1,5
learning material is enough joseph
i jus cant understant it
@vijayirtt59 did u try to write a code...
yes levi
function updateRecords(id, prop, value) {
var obj = collection.id[prop];
console.log(obj);
if(prop != "tracks" && value != ""){
}
return collection;
}
obj is returing undefined
yes u are in the rigth path...
when i try in my console its returing value
@jamesmillerho No no. The 'primes' array are just for checking/dividing the numbers within the range of the array in the argument. This is the algorithm I'm trying to do if it helps https://www.youtube.com/watch?v=z5vlj06Ex0U
you dont neer var object, remove it
@vijayirtt59 Remember id is a variable just like prop
need
remove console.log too, u dont need it
@da7thsin The problem with the primes array is it doesn't apply to the general solution. Also, prime factorization is not a simple task.
You could consider LCM by calculating the GCD first
You could consider LCM by calculating the GCD first
function updateRecords(id, prop, value) {
if(prop != "tracks" && value != ""){
collection.id[prop] = value;
}
levi i am getting collection.id is undefined
@da7thsin this is very difficult to do, consider 1-13. you can't find a prime number to divide all of them
@revisualize I am just on a mission to fiddle- (I have your Record Collection hints saved for future use), but it this Array is not an array what is it?!
its JSON
collection[id].artist = value
@m4sterbunny is json file
@nicopcat why is case 2 in 2 places?
@da7thsin the easy way to do is to just start from the largest number (13 in 1-13)
check if 1-13 are divisible by 13;
if not;
increment that number by 13 each time
check if 1-13 are divisible by 13;
if not;
increment that number by 13 each time
@MalangeLevi but if other property was passed? Do we need to hardcode artist
@jamesmillerho Hm.. The 'primes' array are just 2,3,5,7. They're not really primes but are like GCD's for the nums array.
@vijayirtt59 depend...if you know the property just use it, if you want to find a property than hasownproperty....
@vijayirtt59 i just used the properties...
@vijayirtt59 id is a variable and requires [id]
@vijayirtt59 remember u have parameters...id, prop, value,
thanks greg
@MalangeLevi if(prop=="tracks" && value != ""){
collection[id]["tracks"].push(value);
}
collection[id]["tracks"].push(value);
}
is this right? If prop is "tracks" and value isn't empty (""), push the value onto the end of the album's existing tracks array.
@vijayirtt59 u will need to push but not yet u need more codes before pushing...are u reading the assigment?
@vijayirtt59 your code is right... but...
@vijayirtt59 remember .push is an array method, so you need to make sure that the array you are pushing on exist (in this case the array we want is in 'tracks' property). this is where the .hasOwnProperty comes in handy. Test if 'tracks' exist, if it does then push the value. if not create/add the property 'tracks' and its value is an array then push