locutus/golang/strings/Trim.js

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

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.Trim = Trim;
function Trim(s, cutset) {
    //      discuss at: https://locutus.io/golang/strings/Trim
    // parity verified: Go 1.23
    //     original by: Kevin van Zonneveld (https://kvz.io)
    //          note 1: Unlike Go's strings.Trim which removes characters in cutset,
    //          note 1: this implementation removes exact matches of cutset from both ends
    //       example 1: Trim('!!!Hello, Gophers!!!', '!')
    //       returns 1: 'Hello, Gophers'
    //       example 2: Trim('  Hello  ', ' ')
    //       returns 2: 'Hello'
    s = s + '';
    cutset = cutset + '';
    // Build regex to match cutset characters at start and end
    const escaped = cutset.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
    const regex = new RegExp('^[' + escaped + ']+|[' + escaped + ']+$', 'g');
    return s.replace(regex, '');
}