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number palindrome by converting to string and simple iteration #25

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number palindrome by converting to string and simple iteration #25

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20 changes: 16 additions & 4 deletions src/problems/palindrome.js
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Original file line number Diff line number Diff line change
Expand Up @@ -3,7 +3,7 @@
we get abba. So this is a palindrome
*/

palindrome = string => {
palindrome = (string) => {
let reversedString = string
.split('')
.reduce((reversed, character) => character + reversed, '');
Expand All @@ -13,7 +13,7 @@ palindrome = string => {

// palindrome of a string using every array helper method

palindromeUsingEvery = string => {
palindromeUsingEvery = (string) => {
return string
.split('')
.every(
Expand All @@ -23,7 +23,7 @@ palindromeUsingEvery = string => {

// palindrome for a given number using reduce method

palindromeForANumber = number => {
palindromeForANumber = (number) => {
let reversedNumber = number
.toString()
.split('')
Expand All @@ -33,7 +33,7 @@ palindromeForANumber = number => {

// palindrome without array helper method

palindromeForANumberWithoutReduce = number => {
palindromeForANumberWithoutReduce = (number) => {
let num = number;
let arr = [];
while (num > 0) {
Expand All @@ -43,3 +43,15 @@ palindromeForANumberWithoutReduce = number => {
}
return +arr.join('') === number;
};

//palindrome of a number by converting to string and simple iteration
const numberPalindromeWithString = (num) => {
var s = num.toString();
var reverse = '';
var i;
for (i = s.length; i >= 0; i--) {
reverse = reverse + s.charAt(i);
}
if (reverse === s) return s + ' is a plindrome';
else return s + ' is not a palindrome';
};