collectionsts/collectionsts.js

collectionsts =============

function generateHash() {
    return Math.random().toString(36).slice(2);
}
var Collection = (function () {
    function Collection() {
        this._items = {
        };
        this._length = 0;
    }
    Object.defineProperty(Collection.prototype, "length", {
        get: function () {
            return this._length;
        },
        enumerable: true,
        configurable: true
    });
    Collection.prototype.get = function (id) {
        if(!this._items[id]) {
            return null;
        } else {
            return this._items[id];
        }
    };
    Collection.prototype.getHash = function () {
        var hash = generateHash();
        while(this._items[hash] !== undefined) {
            hash = generateHash();
        }
        return hash;
    };
    Collection.prototype.add = function (elem) {
        if(!elem.uid) {
            elem.uid = this.getHash();
        }
        this._items[elem.uid] = elem;
        this._length++;
    };
    Collection.prototype.remove = function (elem) {
        this.removeById(elem.uid);
    };
    Collection.prototype.removeById = function (id) {
        this._items[id] = undefined;
        this._length--;
    };
    Collection.prototype.forEach = function (op) {
        var i = 0;
        for(var id in this._items) {
            op(this._items[id], id, i++, this);
        }
    };
    Collection.prototype.toArray = function () {
        var arr = new Array(this.length);
        this.forEach(function (elem, id, i) {
            arr[i] = elem;
        });
        return arr;
    };
    return Collection;
})();
exports.Collection = Collection;
function toUnique(obj, id) {
    obj.uid = id;
    return obj;
}
exports.toUnique = toUnique;