# toLowerCase method

The `toLowerCase` method converts characters of a string to lower case (makes small letters from capital letters). In doing so, we get a new string, while the original string remains unaffected.

## Syntax

`string.toLowerCase();`

## Example

Let's convert all capital letters of a string to small letters:

`let str = 'ABCDE'; console.log(str.toLowerCase());`

The code execution result:

`'abcde'`

## Example

By combining the `toLowerCase` method and the `slice` method, you can set lower case for individual parts of a string:

`let str = 'ABCDE'; let res = str.slice(0, 1) + str.slice(1).toLowerCase(); console.log(res);`

The code execution result:

`'Abcde'`

## See also

- the `toUpperCase` method
  that converts a string to uppercase
- the `charAt` method
  that returns a character in a string

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