# Function palindrome

Function palindrome
0
#1

I have been trying this question for a while, I am not sure what is wrong with my code.
Odd number array with return true could not passed…

Shall I just go for split. reverse. join function then compare the two strings, instead of comparing arrays…

``````function palindrome(str) {
// Good luck!

str = str.replace(/[^a-zA-Z 0-9]+/g,'');
str = str.toLowerCase();

var arrNum = str.length;
// make it int not flort
var middlePoint = Math.floor (arrNum /2);
var j = 0;

while( j < middlePoint)
{
if (str [j] == str [arrNum -1 - j])
{
j++;

//if array is odd number
if (j == (arrNum -1-j))
{
return true;
}
}
else
{
return false;
}
}
return true;

}
``````
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#2

You are 99.99% there. Just remove the space in your regular expression (line #1).

Randy

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#3

OH!!! thank you so much! I really need to be trained to be super careful - it to
ok me about 3 hours

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#4

I have had problems where I spent days trying to figure out why my logic was only to find a typo. It is part of the joy of programming.

Good job on solving the challenge with a very efficient algorithm!

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#5

I cleaned up your code.
You need to use triple backticks to post code to the forum.
See this post for details.

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#6

Thanks a million . I woundered how to post codes :)

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