String.prototype.reverse() - Javascript

The reverse() method is a built-in method of the JavaScript String object. This method is used to reverse the order of the characters in a string.

Syntax

str.reverse()

Parameters

This method does not accept any parameters.

Return value

The reverse() method returns a new string with the characters in reverse order.

Examples

Example 1: Using reverse() method

let str = "hello";
let reversedStr = str.reverse(); // "olleh"
console.log(reversedStr);

In the above example, we have created a string str and initialized it with the value hello. Then, we have called the reverse() method on the str object and stored the reversed string in a variable reversedStr. Finally, we have printed the reversedStr variable to the console.

Example 2: Using split() and reverse() methods

let str = "hello";
let splitStr = str.split(""); // ["h", "e", "l", "l", "o"]
let reversedStr = splitStr.reverse(); // ["o", "l", "l", "e", "h"]
let joinStr = reversedStr.join(""); // "olleh"
console.log(joinStr);

In the above example, we have created a string str and initialized it with the value hello. Then, we have split the str string into an array of individual characters using the split() method and stored it in the splitStr variable. We have used the reverse() method to reverse the order of the array elements and stored the reversed array in the reversedStr variable. Finally, we have joined the reversed array elements to form a reversed string using the join() method and stored it in the joinStr variable. We have printed the joinStr variable to the console.

Browser Support

The reverse() method is supported in all major browsers including Chrome, Firefox, Safari, Edge and Internet Explorer. However, you may need to provide a polyfill for older versions of Internet Explorer.

Conclusion

The reverse() method in JavaScript can be used to reverse the order of characters in a string. It is a convenient method that can be used to quickly manipulate strings in an application.