32 lines
1.1 KiB
JavaScript
32 lines
1.1 KiB
JavaScript
import toDate from "../toDate/index.js";
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import requiredArgs from "../_lib/requiredArgs/index.js";
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/**
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* @name endOfDecade
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* @category Decade Helpers
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* @summary Return the end of a decade for the given date.
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*
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* @description
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* Return the end of a decade for the given date.
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*
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* @param {Date|Number} date - the original date
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* @returns {Date} the end of a decade
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* @param {Object} [options] - an object with options.
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* @param {0|1|2} [options.additionalDigits=2] - passed to `toDate`. See [toDate]{@link https://date-fns.org/docs/toDate}
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* @throws {TypeError} 1 argument required
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* @throws {RangeError} `options.additionalDigits` must be 0, 1 or 2
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*
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* @example
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* // The end of a decade for 12 May 1984 00:00:00:
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* const result = endOfDecade(new Date(1984, 4, 12, 00, 00, 00))
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* //=> Dec 31 1989 23:59:59.999
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*/
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export default function endOfDecade(dirtyDate) {
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requiredArgs(1, arguments);
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var date = toDate(dirtyDate);
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var year = date.getFullYear();
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var decade = 9 + Math.floor(year / 10) * 10;
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date.setFullYear(decade, 11, 31);
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date.setHours(23, 59, 59, 999);
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return date;
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} |