73 lines
1.6 KiB
JavaScript
73 lines
1.6 KiB
JavaScript
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module.exports = List;
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function List(data, type, parent) {
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this.parent = parent;
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this.nextid = 1;
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data = this.items = data || [];
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var Item = this.ItemType = ListItem;
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if (typeof type === 'object' && type.constructor.name === 'Array') {
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this.ItemType = Item = type[0] || ListItem;
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}
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data.forEach(function (item) {
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data[i] = new Item(item, parent);
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});
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}
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List.prototype.toObject = function () {
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return this.items;
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};
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List.prototype.autoincrement = function () {
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return this.nextid++;
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};
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List.prototype.push = function (obj) {
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var item = new ListItem(obj, this);
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if (this.ItemType) {
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item.__proto__ = this.ItemType.prototype;
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}
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item.id = this.autoincrement();
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this.items.push(item);
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return item;
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};
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List.prototype.remove = function (obj) {
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var found;
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this.items.forEach(function (o, i) {
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if (o.id === obj.id) found = i;
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});
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if (found) {
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this.items.splice(i, 1);
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}
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};
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List.prototype.forEach = function (cb) {
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this.items.forEach(cb);
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};
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List.prototype.sort = function (cb) {
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return this.items.sort(cb);
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};
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List.prototype.map = function (cb) {
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if (typeof cb === 'function') return this.items.map(cb);
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if (typeof cb === 'string') return this.items.map(function (el) {
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if (typeof el[cb] === 'function') return el[cb]();
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if (el.hasOwnProperty(cb)) return el[cb];
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});
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};
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function ListItem(data, parent) {
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for (var i in data) this[i] = data[i];
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Object.defineProperty(this, 'parent', {
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writable: false,
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enumerable: false,
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configurable: true,
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value: parent
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});
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}
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