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Update palindrome.js #342

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15 changes: 9 additions & 6 deletions 01-js/medium/palindrome.js
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Original file line number Diff line number Diff line change
@@ -1,13 +1,16 @@
/*
Implement a function `isPalindrome` which takes a string as argument and returns true/false as its result.
Note: the input string is case-insensitive which means 'Nan' is a palindrom as 'N' and 'n' are considered case-insensitive.

Once you've implemented the logic, test your code by running
- `npm run test-palindrome`
*/

function isPalindrome(str) {
var str1=str.replace(/[\W_]/g, '').toLowerCase();
var arr=[];
for(var i =str1.length-1;i>=0;i--){
arr.push(str1[i]);
}
var string1 = arr.join('');
if(string1==str1)
return true;
else
return false;
}

module.exports = isPalindrome;