es-toolkit/docs/reference/string/upperFirst.md

upperFirst

Converts the first character of string to upper case.

Signature

function upperFirst(str: string): string;

Parameters

• str (string): The string that is to be changed.

Returns

(string) The string converted.

Examples

import { upperFirst } from 'es-toolkit/string';

upperFirst('fred'); // returns 'Fred'
upperFirst('Fred'); // returns 'Fred'
upperFirst('FRED'); // returns 'FRED'