1/* 2 * Copyright 2017 Palantir Technologies, Inc. All rights reserved. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17const userAgent = typeof navigator !== "undefined" ? navigator.userAgent : ""; 18const browser = { 19 isEdge: /Edge/.test(userAgent), 20 isInternetExplorer: /Trident|rv:11/.test(userAgent), 21 isWebkit: /AppleWebKit/.test(userAgent), 22}; 23 24export const Browser = { 25 isEdge: () => browser.isEdge, 26 isInternetExplorer: () => browser.isInternetExplorer, 27 isWebkit: () => browser.isWebkit, 28}; 29