37 lines
1.2 KiB
JavaScript
37 lines
1.2 KiB
JavaScript
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import toDate from '../toDate/index.js';
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/**
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* @name differenceInMilliseconds
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* @category Millisecond Helpers
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* @summary Get the number of milliseconds between the given dates.
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*
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* @description
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* Get the number of milliseconds between the given dates.
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*
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* ### v2.0.0 breaking changes:
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*
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* - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes).
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*
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* @param {Date|Number} dateLeft - the later date
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* @param {Date|Number} dateRight - the earlier date
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* @returns {Number} the number of milliseconds
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* @throws {TypeError} 2 arguments required
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*
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* @example
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* // How many milliseconds are between
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* // 2 July 2014 12:30:20.600 and 2 July 2014 12:30:21.700?
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* var result = differenceInMilliseconds(
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* new Date(2014, 6, 2, 12, 30, 21, 700),
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* new Date(2014, 6, 2, 12, 30, 20, 600)
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* )
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* //=> 1100
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*/
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export default function differenceInMilliseconds(dirtyDateLeft, dirtyDateRight) {
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if (arguments.length < 2) {
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throw new TypeError('2 arguments required, but only ' + arguments.length + ' present');
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}
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var dateLeft = toDate(dirtyDateLeft);
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var dateRight = toDate(dirtyDateRight);
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return dateLeft.getTime() - dateRight.getTime();
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}
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