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JavaScript String toLowerCase() Method

JavaScript string toLowerCase() Method with example, by string literal, by string object (using new keyword), javascript string methods, charAt(index) method, concat(str) method, indexOf(str) method, lastIndexOf(str) method, lowerCase() method, upperCase() method, slice(beginIndex, endIndex) method, trim() method, toLowerCase(), slice(), concat(), charCodeAt() method etc.

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JavaScript String toLowerCase() Method

The JavaScript string toLowerCase() method is used to convert the string into lowercase letter. This method doesn't make any change in the original string.

Syntax

The toLowerCase() method is represented by the following syntax:

string.toLowerCase()

Return

String in lowercase letter.

JavaScript String toLowerCase() Method Example

Let's see some simple examples of toLowerCase() method.

Example 1

Here, we will print the string in lowercase letter.

<script>
var str = "JAVATPOINT";
document.writeln(str.toLowerCase());
</script>
Test it Now

Output:

TheDeveloperBlog

Example 2

This is one more example to print the string in lower case letter.

<script>
var str = "JAVATPOINT tutorials";
document.writeln(str.toLowerCase());
</script>
Test it Now

Output:

TheDeveloperBlog tutorials

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