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Check Palindrome String in Javascript

palindrome in javascript

function palindrome(str) {

    var len = str.length;
    var mid = Math.floor(len/2);

    for ( var i = 0; i < mid; i++ ) {
        if (str[i] !== str[len - 1 - i]) {
            return false;

    return true;

Check Palindrome Using for Loop

// program to check if the string is palindrome or not

function checkPalindrome(string) {

    // find the length of a string
    const len = string.length;

    // loop through half of the string
    for (let i = 0; i < len / 2; i++) {

        // check if first and last string are same
        if (string[i] !== string[len - 1 - i]) {
            return 'It is not a palindrome';
    return 'It is a palindrome';

// take input
const string = prompt('Enter a string: ');

// call the function
const value = checkPalindrome(string);



Enter a string: madam
It is a palindrome


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