hint [2/8]
You have to check if the string you get as an input is a palindrome and return true
if it is, and false
otherwise.
type
hint
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hint [3/8]
You may use regular expressions (RegExp
) to remove unwanted characters from the string.
type
hint
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hint [4/8]
You may use Array.prototype.split
and Array.prototype.join
methods or for
loop.
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hint
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hint [5/8]
You may lowercase the string using String.prototype.toLowerCase
.
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hint
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hint [6/8]
Solution ahead!
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hint [7/8]
function palindrome(str) {
var normalizedStr = str.replace(/[\W_]/g, '').toLowerCase();
var reverseStr = normalizedStr.split('').reverse().join('');
return normalizedStr === reverseStr;
}
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hint
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hint [8/8]
function palindrome(str) {
str = str.toLowerCase().replace(/[\W_]/g, '');
for(var i = 0, len = str.length - 1; i < len/2; i++) {
if(str[i] !== str[len-i]) {
return false;
}
}
return true;
}
We use regular expressions to replace any uppercase letter into a lowercase. Then we check if the string is the same as the reversed string using split()
to split the original string by characters, then reverse and then join it back together.
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hint
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hint [1/8]
Make sure you've tried to hard to solve it yourself before proceeding. :construction:
type
hint
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hint [2/8]
You have to check if the string you get as an input is a palindrome and return true
if it is, and false
otherwise.
type
hint
for next hint :pencil: [Contribute at the FCC Wiki]
hint [1/8]
Make sure you've tried to hard to solve it yourself before proceeding. :construction:
type
hint
for next hint :pencil: [Contribute at the FCC Wiki]
hint [2/8]
You have to check if the string you get as an input is a palindrome and return true
if it is, and false
otherwise.
type
hint
for next hint :pencil: [Contribute at the FCC Wiki]
hint [3/8]
You may use regular expressions (RegExp
) to remove unwanted characters from the string.
type
hint
for next hint :pencil: [Contribute at the FCC Wiki]
hint [4/8]
You may use Array.prototype.split
and Array.prototype.join
methods or for
loop.
type
hint
for next hint :pencil: [Contribute at the FCC Wiki]
hint [1/8]
Make sure you've tried to hard to solve it yourself before proceeding. :construction:
type
hint
for next hint :pencil: [Contribute at the FCC Wiki]
hint [2/8]
You have to check if the string you get as an input is a palindrome and return true
if it is, and false
otherwise.
type
hint
for next hint :pencil: [Contribute at the FCC Wiki]
hint [1/8]
Make sure you've tried to hard to solve it yourself before proceeding. :construction:
type
hint
for next hint :pencil: [Contribute at the FCC Wiki]
hint [2/8]
You have to check if the string you get as an input is a palindrome and return true
if it is, and false
otherwise.
type
hint
for next hint :pencil: [Contribute at the FCC Wiki]
hint [3/8]
You may use regular expressions (RegExp
) to remove unwanted characters from the string.
type
hint
for next hint :pencil: [Contribute at the FCC Wiki]
hint [4/8]
You may use Array.prototype.split
and Array.prototype.join
methods or for
loop.
type
hint
for next hint :pencil: [Contribute at the FCC Wiki]
hint [5/8]
You may lowercase the string using String.prototype.toLowerCase
.
type
hint
for next hint :pencil: [Contribute at the FCC Wiki]
hint [1/8]
Make sure you've tried to hard to solve it yourself before proceeding. :construction:
type
hint
for next hint :pencil: [Contribute at the FCC Wiki]
hint [2/8]
You have to check if the string you get as an input is a palindrome and return true
if it is, and false
otherwise.
type
hint
for next hint :pencil: [Contribute at the FCC Wiki]