String toLowerCase()

In JavaScript, String.toLowerCase() method is used to convert the given string to lower case string.

Syntax

str.toLowerCase()

where

• str is a string.

toLowerCase() method makes a copy of the given string, converts the uppercase characters to lowercase characters, and returns the resulting string.

The value in the string variable str is unmodified.

Example

1. In the following program, we convert the value in string txt to lowercase.

let txt = 'APPLE Banana';
let output = txt.toLowerCase();
console.log(output);
//output //apple banana