How to reverse a string in JavaScript

Array Methods

This is the simplest and most commonly used method.

const str = "hello";
const reversed = str.split("").reverse().join("");
console.log(reversed); // "olleh"

• The split(“”) converts the string into an array of characters, something like this: [“h”, “e”, “l”, ‘l’, “o”].
• With reverse(), you reverse the array.
• And with join(“”), it joins this array to a string olleh.

With a `for`

const str = "hello";
let reversed = "";

for (let i = str.length - 1; i >= 0; i--) {
  reversed += str[i];
}

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

With spread operator

const str = "hello";
const reversed = [...str].reverse().join("");
console.log(reversed); // "olleh"

For most cases, the first method using split will suffice; it is short and readable.