locutus/esm/perl/core/length.js

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

export function length(str) {
    //      discuss at: https://locutus.io/perl/length/
    // parity verified: Perl 5.40
    //     original by: Kevin van Zonneveld (https://kvz.io)
    //       example 1: length('hello')
    //       returns 1: 5
    //       example 2: length('')
    //       returns 2: 0
    //       example 3: length('hello world')
    //       returns 3: 11
    if (str === undefined || str === null) {
        return undefined;
    }
    return String(str).length;
}