var startOfDay = require('../start_of_day/index.js')
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/**
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* @category Day Helpers
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* @summary Is the given date yesterday?
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*
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* @description
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* Is the given date yesterday?
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*
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* @param {Date|String|Number} date - the date to check
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* @returns {Boolean} the date is yesterday
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*
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* @example
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* // If today is 6 October 2014, is 5 October 14:00:00 yesterday?
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* var result = isYesterday(new Date(2014, 9, 5, 14, 0))
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* //=> true
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*/
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function isYesterday (dirtyDate) {
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var yesterday = new Date()
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yesterday.setDate(yesterday.getDate() - 1)
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return startOfDay(dirtyDate).getTime() === startOfDay(yesterday).getTime()
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}
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module.exports = isYesterday
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