locutus/golang/strconv/ParseBool.js

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

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.ParseBool = ParseBool;
function ParseBool(str) {
    //      discuss at: https://locutus.io/golang/strconv/ParseBool
    // parity verified: Go 1.23
    //     original by: Kevin van Zonneveld (https://kvz.io)
    //          note 1: Parses a boolean string value.
    //          note 1: Returns [value, null] on success, [false, error] on failure.
    //          note 1: Accepts: 1, t, T, TRUE, true, True, 0, f, F, FALSE, false, False
    //       example 1: ParseBool('true')[0]
    //       returns 1: true
    //       example 2: ParseBool('FALSE')[0]
    //       returns 2: false
    //       example 3: ParseBool('1')[0]
    //       returns 3: true
    str = (str + '').trim();
    switch (str) {
        case '1':
        case 't':
        case 'T':
        case 'true':
        case 'TRUE':
        case 'True':
            return [true, null];
        case '0':
        case 'f':
        case 'F':
        case 'false':
        case 'FALSE':
        case 'False':
            return [false, null];
        default:
            return [false, new Error('strconv.ParseBool: parsing "' + str + '": invalid syntax')];
    }
}