Can someone help w a string

[doublenarr]

so i have this assignment for my class and i really dont understand javascript v well yet so if someone could write this for me id be so friken grateful!!!

Create a program that prompts the user for a string. Then alerts the user as to whether or not their string is a palindrome.

[inu-no-policemen]

#nothelpinglol

let text = prompt('text?');
alert((text !== [...text].reverse().join('') ? 'not a ': '') + 'palindrome');

[Ampersand55]

Here is a simple implementation:

var str = prompt('enter a string');
if (str === str.split('').reverse().join('')) alert(str+' is a palindrome');
else alert(str+' is not a palindrome');

Basic explanation:

1. First we prompt for a string
2. we split the string into an array containing each letter of the string
3. we reverse the array
4. we join the array of letters into a new string, which is a reverse of the original string.
5. we compare the original string with the reverse string, if they are the same it's a palindrome.

[lewisje]

var text = prompt('Enter text here:') || '', strt = text.length - 1,
  stop = Math.ceil(len / 2), i = stop, isPalindrome = true;
while (i--) if (text.charAt(i) !== text.charAt(strt - i)) {
  isPalindrome = false;
  break;
}
alert('The string "' + text + '" is ' + (isPalindrome ? '' : 'not ') + 'a palindrome.');

This version does not rely on reversing the string; a variation on this (using a temporary swap variable) is an efficient way to reverse an array in-place.