lowerCase 
Converts a string to lower case.
Lower case is the naming convention in which each word is written in lowercase and separated by an space ( ) character. For example, lower case.
Signature 
typescript
function lowerCase(str: string): string;Parameters 
- str(- string): The string that is to be changed to lower case.
Returns 
(string) The converted string to lower case.
Examples 
typescript
import { lowerCase } from 'es-toolkit/string';
lowerCase('camelCase'); // returns 'camel case'
lowerCase('some whitespace'); // returns 'some whitespace'
lowerCase('hyphen-text'); // returns 'hyphen text'
lowerCase('HTTPRequest'); // returns 'http request'
