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28 lines
773 B
28 lines
773 B
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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