String Reversal in JavaScript: A Fun Coding Challenge

Introduction

In this article, we'll talk about the Reverse a String coding challenge. We want to find out how to make a word go backward using JavaScript. There are different ways to do this, and I'll show you a method. But before we start writing the code, let's understand what the Reverse a String challenge is all about. It's like a game where we create a tool (or function) that can make any word look backwards. So, the goal is to turn a regular word into its backward version.

Examples:

• If input is string then output will be gnirts.
• If input is Reverse a String; then output will be gnirtS a esreveR

There are many ways to solve this, but we will try to solve this challenge in the easiest way.

Using for loop:

A for loop is like a trick in JavaScript that helps you look at each letter of a word one by one. It's often used when you want to change, update, or remove things inside a group of items, like a bunch of words. This article will tell you more about how this for loop works, so you can understand and use it better

let s = 'Reverse a String'

function string(s) {
    let reverseString = '';

    for (let i = s.length - 1; i >= 0; i--) {
        reverseString += s[i]
    }
    return reverseString;
}

console.log(string(s))

// output = gnirtS a esreveR
                            

Breaking Up Solution:

Let's break down this function into smaller pieces so that we can understand it well.

First, we declare a variable 'let reverseString = ''; and leave it empty for now. We will add a new value in the next step.

After that, we start a loop to access all the characters of any string one by one. Inside the loop, we use the step 'reverseString += s[i]' to assign a new reversed value. '+=’ means adding a value to another variable.

Finally, we use 'return reverseString;' so that we can display the reversed value.