locutus/esm/lua/string/upper.js

Locutus other languages' standard libraries to JavaScript for fun and educational purposes

export function upper(s) {
    //      discuss at: https://locutus.io/lua/upper/
    // parity verified: Lua 5.4
    //     original by: Kevin van Zonneveld (https://kvz.io)
    //       example 1: upper('hello')
    //       returns 1: 'HELLO'
    //       example 2: upper('Hello World')
    //       returns 2: 'HELLO WORLD'
    return String(s).toUpperCase();
}