28 lines
773 B
JavaScript
28 lines
773 B
JavaScript
var parse = require('../parse/index.js')
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/**
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* @category Month Helpers
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* @summary Get the number of days in a month of the given date.
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*
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* @description
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* Get the number of days in a month of the given date.
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*
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* @param {Date|String|Number} date - the given date
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* @returns {Number} the number of days in a month
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*
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* @example
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* // How many days are in February 2000?
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* var result = getDaysInMonth(new Date(2000, 1))
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* //=> 29
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*/
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function getDaysInMonth (dirtyDate) {
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var date = parse(dirtyDate)
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var year = date.getFullYear()
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var monthIndex = date.getMonth()
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var lastDayOfMonth = new Date(0)
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lastDayOfMonth.setFullYear(year, monthIndex + 1, 0)
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lastDayOfMonth.setHours(0, 0, 0, 0)
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return lastDayOfMonth.getDate()
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}
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module.exports = getDaysInMonth
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