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4409642811
Summary: | Group | Before | After | Change | | Untyped | 50 | 49 | -1 | | flow | 197 | 155 | -42 | | flow strict-local | 226 | 185 | -41 | | flow strict | 33 | 117 | +84 Changelog: [Changed] Improved Flow typing of multiple modules (with migrations to `flow strict` and `flow strict-local` Reviewed By: motiz88 Differential Revision: D22549140 fbshipit-source-id: ed29415332cfce15b244ee4dea9e13d035543175
27 lines
611 B
JavaScript
27 lines
611 B
JavaScript
/**
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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* @flow strict
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* @format
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*/
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'use strict';
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if (!global.performance) {
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global.performance = {};
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}
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/**
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* Returns a double, measured in milliseconds.
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* https://developer.mozilla.org/en-US/docs/Web/API/Performance/now
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*/
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if (typeof global.performance.now !== 'function') {
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global.performance.now = function() {
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const performanceNow = global.nativePerformanceNow || Date.now;
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return performanceNow();
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};
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}
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