import { ResizeObserverController } from './ResizeObserverController'; import { isElement } from './utils/element'; var ResizeObserver = (function () { function ResizeObserver(callback) { if (arguments.length === 0) { throw new TypeError("Failed to construct 'ResizeObserver': 1 argument required, but only 0 present."); } if (typeof callback !== 'function') { throw new TypeError("Failed to construct 'ResizeObserver': The callback provided as parameter 1 is not a function."); } ResizeObserverController.connect(this, callback); } ResizeObserver.prototype.observe = function (target, options) { if (arguments.length === 0) { throw new TypeError("Failed to execute 'observe' on 'ResizeObserver': 1 argument required, but only 0 present."); } if (!isElement(target)) { throw new TypeError("Failed to execute 'observe' on 'ResizeObserver': parameter 1 is not of type 'Element"); } ResizeObserverController.observe(this, target, options); }; ResizeObserver.prototype.unobserve = function (target) { if (arguments.length === 0) { throw new TypeError("Failed to execute 'unobserve' on 'ResizeObserver': 1 argument required, but only 0 present."); } if (!isElement(target)) { throw new TypeError("Failed to execute 'unobserve' on 'ResizeObserver': parameter 1 is not of type 'Element"); } ResizeObserverController.unobserve(this, target); }; ResizeObserver.prototype.disconnect = function () { ResizeObserverController.disconnect(this); }; ResizeObserver.toString = function () { return 'function ResizeObserver () { [polyfill code] }'; }; return ResizeObserver; }()); export { ResizeObserver };