upperFirst ​
Converts the first character of string to upper case.
Signature ​
typescript
function upperFirst(str: string): string;
Parameters ​
str
(string
): The string that is to be changed.
Returns ​
(string
) The string converted.
Examples ​
typescript
import { upperFirst } from 'es-toolkit/string';
upperFirst('fred'); // returns 'Fred'
upperFirst('Fred'); // returns 'Fred'
upperFirst('FRED'); // returns 'FRED'