var parse = require('../parse/index.js')
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/**
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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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* @param {Date|String|Number} dateLeft - the later date
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* @param {Date|String|Number} dateRight - the earlier date
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* @returns {Number} the number of milliseconds
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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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function differenceInMilliseconds (dirtyDateLeft, dirtyDateRight) {
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var dateLeft = parse(dirtyDateLeft)
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var dateRight = parse(dirtyDateRight)
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return dateLeft.getTime() - dateRight.getTime()
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}
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module.exports = differenceInMilliseconds
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