/* * Licensed to Elasticsearch B.V. under one or more contributor * license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright * ownership. Elasticsearch B.V. licenses this file to you under * the Apache License, Version 2.0 (the "License"); you may * not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. */ // We don't normally use 'I' prefixes, this file is an exception interface IBrowser { isEventSupported: (name: string, element: EventTarget) => boolean; } const BrowserImpl: IBrowser = { isEventSupported: (name, element): boolean => { return `on${name}` in element; }, }; export const Browser = Object.freeze(BrowserImpl);