coding interview questions javascript, javascript interview questions for experienced, javascript interview questions, javascript interview questions jsmount, top javascript interview questions, advanced javascript interview questions 💡Write a program to Check the number is Palindrome. function checkPalindrome(str) {     if(str) {         var pattern = /[^a-zA-z]+/g; // first remove spaces and special chars from given string         str = str.replace(pattern, ”).toLowerCase();         var str1 = str.split(”).reverse().join(”);         console.log(str, str1); // for testing         if(str1 == str.toLowerCase()) {             return true;         }else {             return false;         }     } } Output >checkPalindrone(“diD”)  => true > Second way without using any predefined method: […]