30 lines
824 B
JavaScript
30 lines
824 B
JavaScript
import toDate from '../toDate/index.js';
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/**
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* @name isSunday
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* @category Weekday Helpers
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* @summary Is the given date Sunday?
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*
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* @description
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* Is the given date Sunday?
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*
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* ### v2.0.0 breaking changes:
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*
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* - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes).
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*
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* @param {Date|Number} date - the date to check
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* @returns {Boolean} the date is Sunday
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* @throws {TypeError} 1 argument required
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*
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* @example
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* // Is 21 September 2014 Sunday?
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* var result = isSunday(new Date(2014, 8, 21))
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* //=> true
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*/
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export default function isSunday(dirtyDate) {
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if (arguments.length < 1) {
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throw new TypeError('1 argument required, but only ' + arguments.length + ' present');
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}
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return toDate(dirtyDate).getDay() === 0;
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} |