ES6 JS implementation of Registry pattern

Registry.js

/**
 * Created by Alexander Litvinov
 * Email: [email protected]
 * May be freely distributed under the MIT license
 */
 
'use strict';

import _ from 'lodash'

export default

class Registry {

    constructor() {
        this._storage = {};
        this._fabric = {};
    }


    add(key, value, options) {
        if (arguments.length == 3) {
            return this._fabric[key] = [value, options]
        } else {
            return this._storage[key] = value;
        }
    }

    remove(key, isFabric) {
        if (isFabric) {
            delete this._fabric[key]
        }
        else {
            delete this._storage[key];
        }
    }

    acquire(key, options) {
        if (arguments.length == 2) {
            if (this._fabric[key]) {
                var fabric = this._fabric[key],
                    create = fabric[0],
                    params = _.extend({}, fabric[1], options);

                return create(params)
            } else {
                return this._storage[key] || options;
            }
        } else {
            return this._storage[key]
        }
    }
}