es-toolkit/dist/string/capitalize.js

A state-of-the-art, high-performance JavaScript utility library with a small bundle size and strong type annotations.

//#region src/string/capitalize.ts
/**
* Converts the first character of string to upper case and the remaining to lower case.
*
* @template T - Literal type of the string.
* @param str - The string to be converted to uppercase.
* @returns The capitalized string.
*
* @example
* const result = capitalize('fred') // returns 'Fred'
* const result2 = capitalize('FRED') // returns 'Fred'
*/
function capitalize(str) {
	return str.charAt(0).toUpperCase() + str.slice(1).toLowerCase();
}
//#endregion
exports.capitalize = capitalize;