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32 lines
718 B
32 lines
718 B
var parse = require('../parse/index.js') |
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/** |
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* @category Weekday Helpers |
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* @summary Get the day of the ISO week of the given date. |
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* |
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* @description |
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* Get the day of the ISO week of the given date, |
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* which is 7 for Sunday, 1 for Monday etc. |
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* |
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* ISO week-numbering year: http://en.wikipedia.org/wiki/ISO_week_date |
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* |
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* @param {Date|String|Number} date - the given date |
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* @returns {Number} the day of ISO week |
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* |
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* @example |
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* // Which day of the ISO week is 26 February 2012? |
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* var result = getISODay(new Date(2012, 1, 26)) |
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* //=> 7 |
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*/ |
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function getISODay (dirtyDate) { |
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var date = parse(dirtyDate) |
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var day = date.getDay() |
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if (day === 0) { |
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day = 7 |
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} |
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return day |
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} |
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module.exports = getISODay
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