var addMonths = require('../add_months/index.js')
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/**
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* @category Year Helpers
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* @summary Add the specified number of years to the given date.
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*
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* @description
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* Add the specified number of years to 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 years to be added
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* @returns {Date} the new date with the years added
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*
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* @example
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* // Add 5 years to 1 September 2014:
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* var result = addYears(new Date(2014, 8, 1), 5)
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* //=> Sun Sep 01 2019 00:00:00
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*/
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function addYears (dirtyDate, dirtyAmount) {
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var amount = Number(dirtyAmount)
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return addMonths(dirtyDate, amount * 12)
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}
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module.exports = addYears
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