camperbot/bonfire-check-for-palindromes

CamperBot

@camperbot

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Oscar Gatamah

@gatamah

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CamperBot

@camperbot

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onethreeeight

@onethreeeight

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CamperBot

@camperbot

hint [2/9]

Explanation:

You have to check if the string you get as an input is a palindrome and return true if it is, and false otherwise.

Roko Medančić

@R0k0

hint profile lookup

CamperBot

@camperbot

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Roko Medančić

@R0k0

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CamperBot

@camperbot

hint [2/9]

Explanation:

You have to check if the string you get as an input is a palindrome and return true if it is, and false otherwise.

codyWchamberlain

@codyWchamberlain

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CamperBot

@camperbot

hint [3/9]

Hint: 1

You may use regular expressions (RegExp) to remove unwanted characters from the string.

http://devdocs.io/#q=js+RegExp

codyWchamberlain

@codyWchamberlain

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CamperBot

@camperbot

hint [4/9]

Hint: 2

You may use Array.prototype.split and Array.prototype.join methods or for loop.

codyWchamberlain

@codyWchamberlain

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CamperBot

@camperbot

hint [5/9]

Hint: 3

You may lowercase the string using String.prototype.toLowerCase.

http://devdocs.io/#q=js+String+toLowerCase

codyWchamberlain

@codyWchamberlain

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CamperBot

@camperbot

hint [6/9]

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Solution ahead!

codyWchamberlain

@codyWchamberlain

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CamperBot

@camperbot

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First

function palindrome(str) {
  var normalizedStr = str.replace(/[\W_]/g, '').toLowerCase();
  var reverseStr = normalizedStr.split('').reverse().join('');
  return normalizedStr === reverseStr;
}

karenkomine

@karenkomine

Can someone explain the stuff that is inside .replace in var normalizedStr?

karenkomine

@karenkomine

Why do we used ' ' ' /[\W_]/g ' ' ' ?

/[\W_]/g

In str.replace?

karenkomine

@karenkomine

How would you set up your code so that in a for loop, you check every single word in an array and you stop the for loop when you find the longest string in that array?

Ahmed Othman

@ahmedgothman

@karenkomine /[\W_]/g is for word characters similiar to [A-Za-z0-9]

@karenkomine sorry i thought it was a recent comment:D

Shruti Hardat

@shrutihardat

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CamperBot

@camperbot

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Shivang

@shivang207

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CamperBot

@camperbot

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Kunal

@kunalg1

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CamperBot

@camperbot

hint [2/9]

Explanation:

You have to check if the string you get as an input is a palindrome and return true if it is, and false otherwise.

Kunal

@kunalg1

hint

CamperBot

@camperbot

hint [3/9]

Hint: 1

You may use regular expressions (RegExp) to remove unwanted characters from the string.

http://devdocs.io/#q=js+RegExp

Kunal

@kunalg1

hint

CamperBot

@camperbot

hint [4/9]

Hint: 2

You may use Array.prototype.split and Array.prototype.join methods or for loop.

Wilbert

@moogler

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CamperBot

@camperbot

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Wilbert

@moogler

hit=nt

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CamperBot

@camperbot

hint [2/12]

Explanation:

Our goal for solving this problem is tidying up the string passed in, and checking whether it is in fact a palindrome.

If you are unsure of what a palindrome is, it is a word or phrase that when reversed spells the same thing forwards or backwards. A simple example is mom, when you reverse the letters, it spells the same thing! Another example of a palindrome is race car. When we take out anything that is not a character it becomes racecar which is the same spelled forwards or backwards!

Once we have determined whether it is a palindrome or not we want to return either true or false based on our findings.

Wilbert

@moogler

hint

CamperBot

@camperbot

hint [3/12]

Hint: 1

Regular expressions, RegEx, can be used to remove unwanted characters from the string.

http://devdocs.io/#q=js+RegExp

Wilbert

@moogler

hint12

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CamperBot

@camperbot

hint [4/12]

Hint: 2

The Array.prototype.split and Array.prototype.join methods can be of use here. For and while loops are another alternative, or why not even map!

Wilbert

@moogler

hint

CamperBot

@camperbot

hint [5/12]

Hint: 3

String.prototype.toLowerCase can be used to make a string lowercase.

http://devdocs.io/#q=js+String+toLowerCase

Wilbert

@moogler

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CamperBot

@camperbot

hint [6/12]

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