FreeCodeCamp/HelpFrontEnd

Get help on our Front End Development projects.

Brett Guillory

@kurzninja

I think there's also a way to link them to Github as well, if you've already uploaded them into a repository there

zackluckyf

@zackluckyf

Hmm couldn't seem to find any information on that. I did see that someone else apparently has done it in a similar fashion to how I did with just using github for everything so if I can avoid codepen I'll just stick to that as long as they don't make me change it!

Brett Guillory

@kurzninja

I have one of my projects all in Github as well, I didn't know you could submit a Github repo as a solution

that's very useful lol

not that I need to, I only have code, not images

but still

zackluckyf

@zackluckyf

hmm actually I need to figure out a way to do it better because technically I didn't link the repo I linked the website as a preview... hmm maybe I should just link the repo and include a file that says click me to preview lol

Brett Guillory

@kurzninja

that's a good idea

sigursiguros

@sigursiguros

Hi guys, I'm working on the pomodoro clock zipline.

I'd like to know whether I need a date time function to get the job done?

Alex Evans

@alex-evans

@sigursiguros I would recommend not using date time functions and instead taking a look at setInterval() method. http://www.w3schools.com/jsref/met_win_setinterval.asp

sigursiguros

@sigursiguros

@alcatrats what's the difference between using setTimeout and setInternal

setInterval*

Alex Evans

@alex-evans

setTimeout will run once after the elapse time, setInterval will continue to run every interval of time until clearInterval is called.

Can someone help me out with the "Exact Change" challenge? I'm confused by how it is pointing me towards using Global Objects. I'm sure there is a reason as I'm writing the answer without them currently and it is ugly but I'm not grasping how the Global Objects will help simplify it. Any pointers?

Alex Evans

@alex-evans

For example I currently have the following:

function drawer(price, cash, cid) {
  var change = cash - price;
  var total = cid[0][1] + cid[1][1] + cid[2][1] + cid[3][1] + cid[4][1] + cid[5][1] + cid[6][1] + cid[7][1] + cid[8][1];

  if(total < change) {
    return "Insufficient Funds";

  } else if(total == change) {
    return "Closed";

  } else {
   return ...;    // will determine exact change at this point and things get very very messy 
  }
}

drawer(19.50, 20.00, [["PENNY", 1.01], ["NICKEL", 2.05], ["DIME", 3.10], ["QUARTER", 4.25], ["ONE", 90.00], ["FIVE", 55.00], ["TEN", 20.00], ["TWENTY", 60.00], ["ONE HUNDRED", 100.00]]);

JackeL

@jackel27

So, I finished the calculator challenge.. spent around 4 hours on it.. but could use a few fixes on layout adjustment....

Brett Guillory

@kurzninja

currently working on the Calculator myself

Sam Reeves

@smreeves

Also just finished the calc challenge. Starting to feel pretty comfortable with jQuery now...

Salman Shahid

@salman-shahid

The calculator is annoying.. a lot of error checking

JackeL

@jackel27

@mynameissal what type of error checking?

Brett Guillory

@kurzninja

I'm just starting to work on the value entry logic

trying to figure out how I want to do this

Salman Shahid

@salman-shahid

@kurzninja I made 2 plans then I decided to #yolo

Brett Guillory

@kurzninja

lol

Salman Shahid

@salman-shahid

@jackel27 Mostly math logic

JackeL

@jackel27

@mynameissal check out eval

Salman Shahid

@salman-shahid

and things like character limit checks, checks to see if there are no operators back to back..

JackeL

@jackel27

hmm

Salman Shahid

@salman-shahid

I am using eval but I have to make sure I don't have things like 1++1

JackeL

@jackel27

good point. I did not do that, I figured taking the string into an expression and returning it back would be fine... even if it was 6**6

Salman Shahid

@salman-shahid

Really.. hmm

Brett Guillory

@kurzninja

I'm thinking about implementing some kind of event subscription to determine what button is being pressed, and passing the value of that button to an assignment controller

so if it's a number, it possibly goes into or replaces the current operand

if it's an operator, it goes into my currOp function

var currOp = function() {

        if (arguments[0]) {
            this.value = arguments[0];
            return;
        } else {
            return this.value;
        }
    };

Salman Shahid

@salman-shahid

@jackel27
console.log(eval("1--1"));

SyntaxError: invalid decrement operand
1--1

@kurzninja I see, also depends on how you want your calculator works.

JackeL

@jackel27

@mynameissal good point.. I will have to work on that myself

Salman Shahid

@salman-shahid

E.g. do you want to display the whole line of calculations and evaluate when user presses = or evalulate after an operation..

Brett Guillory

@kurzninja

that's what I was wondering too

it looks like in the example, it doesn't evaluate until you hit =

but different calculators work differently

Salman Shahid

@salman-shahid

I think the second option is easier but each have their own difficulties.

Yeah, I am going with first option

JackeL

@jackel27

heres mine.. need to work on a few things though.. best viewed in browser...

http://codepen.io/Jackel27/pen/obQoRN

Brett Guillory

@kurzninja

if you want a real challenge, try implementing the user being able to type in the numbers on their keyboard as well as clicking on the page ;)

JackeL

@jackel27

@kurzninja how about voice recognition

Salman Shahid

@salman-shahid

@jackel27 Looks good this is the errors I pick up: multiple decimal places and the one I mentioned earlier.

Brett Guillory

@kurzninja

hahaha

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