function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; } function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; } // for environments without Set we fallback to arrays with unique members var SetLike = /*#__PURE__*/function () { function SetLike() { var items = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : []; _classCallCheck(this, SetLike); _defineProperty(this, "items", void 0); this.items = items; } _createClass(SetLike, [{ key: "add", value: function add(value) { if (this.has(value) === false) { this.items.push(value); } return this; } }, { key: "clear", value: function clear() { this.items = []; } }, { key: "delete", value: function _delete(value) { var previousLength = this.items.length; this.items = this.items.filter(function (item) { return item !== value; }); return previousLength !== this.items.length; } }, { key: "forEach", value: function forEach(callbackfn) { var _this = this; this.items.forEach(function (item) { callbackfn(item, item, _this); }); } }, { key: "has", value: function has(value) { return this.items.indexOf(value) !== -1; } }, { key: "size", get: function get() { return this.items.length; } }]); return SetLike; }(); export default typeof Set === "undefined" ? Set : SetLike; //# sourceMappingURL=SetLike.mjs.map