by Sai gowtham

How to reverse a string in JavaScript

In this tutorial, we are going to learn three different ways to reverse a string in JavaScript by using the reverse method, reduce method, while loop.

First way

const str = "hello"

const reverse = str.split('').reverse().join('');

console.log(reverse); // "olleh"

We used split method to split the string into an array of individual strings then chain it to reverse() , join() methods.

Second way

const str = "hello"

const reverse = [...str].reduce((prev,next) => next+prev);

console.log(reverse); // "olleh"

First, we spread the string using spread operator and reverse the string using the reduce method.

Third way

function reverseString(str){

  const arr = [...str];
  let reverse= "";

  while(arr.length){
    // joining the reversed string
     reverse = reverse + arr.pop();
  }

  return reverse;
}

console.log(reverseString('hi')); // ih

I mostly like the Second way to reverse a string using reduce method.

Happy coding…

Top Udemy Courses

JavaScript - The Complete Guide 2020 (Beginner + Advanced)
JavaScript - The Complete Guide 2020 (Beginner + Advanced)
45,614 students enrolled
52 hours of video content
View Course
React - The Complete Guide (incl Hooks, React Router, Redux)
React - The Complete Guide (incl Hooks, React Router, Redux)
284,472 students enrolled
40 hours of video content
View Course
Vue JS 2 - The Complete Guide (incl. Vue Router & Vuex)
Vue JS 2 - The Complete Guide (incl. Vue Router & Vuex)
130,921 students enrolled
21 hours of video content
View Course