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24 lines
761 B
24 lines
761 B
var addQuarters = require('../add_quarters/index.js') |
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/** |
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* @category Quarter Helpers |
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* @summary Subtract the specified number of year quarters from the given date. |
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* |
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* @description |
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* Subtract the specified number of year quarters from the given date. |
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* |
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* @param {Date|String|Number} date - the date to be changed |
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* @param {Number} amount - the amount of quarters to be subtracted |
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* @returns {Date} the new date with the quarters subtracted |
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* |
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* @example |
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* // Subtract 3 quarters from 1 September 2014: |
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* var result = subQuarters(new Date(2014, 8, 1), 3) |
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* //=> Sun Dec 01 2013 00:00:00 |
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*/ |
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function subQuarters (dirtyDate, dirtyAmount) { |
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var amount = Number(dirtyAmount) |
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return addQuarters(dirtyDate, -amount) |
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} |
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module.exports = subQuarters
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