JavaScript Algorithms and Data Structures Projects - Palindrome Checker

JavaScript
1

Tell us what’s happening:
I’m trying to solve this using Stack DS but I’m getting an error.
palindrome(“0_0 (: /-\ :slight_smile: 0-0”) should return true.
Can someone tell me how to fix my code?

function palindrome(str) {
const regex = new RegExp("[^a-zA-Z0-9\s-]", "g");
let word = str.replace(regex, "").toLowerCase();
let rword = "";
var letters = [];
for (var i = 0; i < word.length; i++) {
  letters.push(word[i]);
}

// pop off the stack in reverse order
for (var i = 0; i < word.length; i++) {
  rword += letters.pop();
}

if (rword === word) {
  return true;
}
else {
  return false;
}
}
palindrome("eye");

  **Your browser information:**

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36

Challenge: JavaScript Algorithms and Data Structures Projects - Palindrome Checker

Link to the challenge:

2

Try to log what is in this variable after you use the regex to clean it up. Is it 0000?

3

No, it’s eye.
js
console.log(word);
eye

4

I mean you should add a console.log in the function….

Right now you are not logging inside the function.

5

You mean after line 3?
I tried console.log(word); there and it showed eye in the console.

6

Yes please.

Then you need to modify the test line(the last line) to give the string that is failing the fCC test…

So


palindrome(“0_0 (: /-\ :) 0-0”)
7

It’s showing 00-0-0
The last line was palindrome(“0_0 (: /-\ :slight_smile: 0-0”);

8

So do you see the problem that you should fix now?

1 Like
9

Yeah, it worked after changing the regex and removing ‘-’
Thanks

1 Like
10

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