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node_modules/web-vitals/dist/modules/lib/polyfills/getFirstHiddenTimePolyfill.js
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TON618OFF
не ну это ваще
23 июн 2024, 00:30
23 июн 2024, 00:30
e27ae20
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/* * Copyright 2020 Google LLC * * Licensed 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 * * https://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. */ let firstHiddenTime = document.visibilityState === 'hidden' ? 0 : Infinity; const onVisibilityChange = (event) => { if (document.visibilityState === 'hidden') { firstHiddenTime = event.timeStamp; removeEventListener('visibilitychange', onVisibilityChange, true); } }; // Note: do not add event listeners unconditionally (outside of polyfills). addEventListener('visibilitychange', onVisibilityChange, true); export const getFirstHiddenTime = () => firstHiddenTime;