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27 lines
733 B
27 lines
733 B
var parse = require('../parse/index.js') |
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/** |
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* @category Year Helpers |
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* @summary Return the start of a year for the given date. |
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* |
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* @description |
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* Return the start of a year for the given date. |
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* The result will be in the local timezone. |
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* |
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* @param {Date|String|Number} date - the original date |
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* @returns {Date} the start of a year |
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* |
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* @example |
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* // The start of a year for 2 September 2014 11:55:00: |
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* var result = startOfYear(new Date(2014, 8, 2, 11, 55, 00)) |
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* //=> Wed Jan 01 2014 00:00:00 |
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*/ |
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function startOfYear (dirtyDate) { |
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var cleanDate = parse(dirtyDate) |
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var date = new Date(0) |
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date.setFullYear(cleanDate.getFullYear(), 0, 1) |
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date.setHours(0, 0, 0, 0) |
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return date |
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} |
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module.exports = startOfYear
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