@technobuddha/library/json/json.cjs

A large library of useful functions

"use strict";
var __read = (this && this.__read) || function (o, n) {
    var m = typeof Symbol === "function" && o[Symbol.iterator];
    if (!m) return o;
    var i = m.call(o), r, ar = [], e;
    try {
        while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);
    }
    catch (error) { e = { error: error }; }
    finally {
        try {
            if (r && !r.done && (m = i["return"])) m.call(i);
        }
        finally { if (e) throw e.error; }
    }
    return ar;
};
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.reviver = exports.replacer = exports.specialFinish = exports.specialBegin = void 0;
var isNaN_1 = __importDefault(require("lodash/isNaN"));
var isFinite_1 = __importDefault(require("lodash/isFinite"));
exports.specialBegin = '﴾';
exports.specialFinish = '﴿';
/**
 * Used with JSON.stringify to encode a wider range of objects into strings that can later be decoded with {@link revive}
 *
 * @remarks Will encode Date, RegExp and BigInt objects.  The numeric values 'Infinity' and 'NaN' are also encoded.
 * @param this The raw object being stringified
 * @param key The key for the field
 * @param value The value (may have already been encoded into a string)
 * @returns the encoded value
 */
function replacer(key, value) {
    var raw = this[key];
    if (raw instanceof Date)
        return exports.specialBegin + "Date:" + raw.toISOString() + exports.specialFinish;
    else if (raw instanceof RegExp)
        return exports.specialBegin + "RegExp:/" + raw.source + "/" + raw.flags + exports.specialFinish;
    else if (typeof raw === 'number' && (isNaN_1.default(raw) || !isFinite_1.default(raw)))
        return exports.specialBegin + "Number:" + raw.toString() + exports.specialFinish;
    else if (typeof raw === 'bigint')
        return exports.specialBegin + "BigInt:" + raw.toString() + exports.specialFinish;
    return value;
}
exports.replacer = replacer;
/**
 * Used with JSON.parse to decode objected encoded by {@link replacer}
 *
 * @param this The raw object
 * @param _key The key
 * @param value The value
 * @returns the decoded value
 */
function reviver(_key, value) {
    if (typeof value === 'string' && value.startsWith(exports.specialBegin) && value.endsWith(exports.specialFinish)) {
        var _a = __read(value.slice(1, -1).split(/:(.+)/u), 2), type = _a[0], jsonValue = _a[1];
        switch (type) {
            case 'Date':
                return new Date(jsonValue);
            case 'RegExp': {
                var matches = /^\/(.*)\/([a-z]*)$/u.exec(jsonValue);
                return matches ? new RegExp(matches[1], matches[2]) : new RegExp(jsonValue, 'u');
            }
            case 'Number':
                return Number(jsonValue);
            case 'BigInt':
                return BigInt(jsonValue);
            default:
                return value;
        }
    }
    return value;
}
exports.reviver = reviver;
exports.default = { replacer: replacer, reviver: reviver };