Enum

Enumeration class. Each enum propertiy has the properties "ordinal", "name" and "text".

بۇ قوليازمىنى بىۋاسىتە قاچىلاشقا بولمايدۇ. بۇ باشقا قوليازمىلارنىڭ ئىشلىتىشى ئۈچۈن تەمىنلەنگەن ئامبار بولۇپ، ئىشلىتىش ئۈچۈن مېتا كۆرسەتمىسىگە قىستۇرىدىغان كود: // @require https://updategreasyfork.deno.dev/scripts/391854/746956/Enum.js

سوئال سوراش، ئوبزور يېزىش ياكى قوليازمىنى پاش قىلىش.

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// ==UserScript==
// @name         Enum
// @namespace    hoehleg.userscripts.private
// @version      0.3
// @description  Enumeration class. Each enum propertiy has the properties "ordinal", "name" and "text".
// @author       Gerrit Höhle
// @grant        none
// ==/UserScript==

/* jslint esnext: true */
const Enum = class EnumBase {

    constructor({ name, ordinal, text } = {}) {
        if (new.target === EnumBase) {
            throw TypeError("Instantiation of abstract enum class");
        }

        if (typeof text !== "undefined") {
            text = String(text);
        }

        Object.assign(this, {
            get ordinal() { return ordinal; },
            get name() { return name; },
            get text() { return text; }
        });
    }

    valueOf() { 
        return this.ordinal; 
    }

    toString() { 
        return (typeof this.text === "undefined") ? this.name : this.text;
    }

    static init(enumDef = [], firstOrdinal = 0, ordinalSupplier = previousOrdinal => previousOrdinal + 1) {
        if (Object.isFrozen(this)) {
            throw TypeError("Reinitialization of finalized enum class");
        }

        let ordinal;
        const ordinals = [];
        for (let enumDefObj of (Array.isArray(enumDef) ? enumDef : [ enumDef ])) {
            if (typeof enumDefObj !== 'object') {
                enumDefObj = { [enumDefObj]: undefined };
            }
            for (let [name, text] of Object.entries(enumDefObj)) {
                ordinal = Number.parseInt((typeof ordinal === "undefined") ? firstOrdinal : ordinalSupplier(ordinal));
                console.assert(typeof this[name] === "undefined", `duplicate enum [${name}]`);
                console.assert(typeof this[ordinal] === "undefined", `duplicate ordinal [${ordinal}] for enum [${name}]`);

                this[name] = new this({ ordinal, name, text });
                Object.defineProperty(this, ordinal, { 
                    value: this[name] 
                });

                ordinals.push(ordinal);
            }
        }

        const enums = ordinals.sort().map(ordinal => this[ordinal]);
        Object.defineProperty(this, Symbol.iterator, { value: () => enums[Symbol.iterator]() });

        return Object.freeze(this);
    }
};