From 38acabfa6089ab8ac469c12b5f55022fb96935e5 Mon Sep 17 00:00:00 2001 From: Sebastian Date: Mon, 23 Aug 2021 16:46:06 -0300 Subject: added web vendors --- date-fns/src/addDays/index.ts | 44 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 date-fns/src/addDays/index.ts (limited to 'date-fns/src/addDays/index.ts') diff --git a/date-fns/src/addDays/index.ts b/date-fns/src/addDays/index.ts new file mode 100644 index 0000000..110ad51 --- /dev/null +++ b/date-fns/src/addDays/index.ts @@ -0,0 +1,44 @@ +import toInteger from '../_lib/toInteger/index' +import toDate from '../toDate/index' +import requiredArgs from '../_lib/requiredArgs/index' + +/** + * @name addDays + * @category Day Helpers + * @summary Add the specified number of days to the given date. + * + * @description + * Add the specified number of days to the given date. + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * @param {Date|Number} date - the date to be changed + * @param {Number} amount - the amount of days to be added. Positive decimals will be rounded using `Math.floor`, decimals less than zero will be rounded using `Math.ceil`. + * @returns {Date} - the new date with the days added + * @throws {TypeError} - 2 arguments required + * + * @example + * // Add 10 days to 1 September 2014: + * const result = addDays(new Date(2014, 8, 1), 10) + * //=> Thu Sep 11 2014 00:00:00 + */ +export default function addDays( + dirtyDate: Date | number, + dirtyAmount: number +): Date { + requiredArgs(2, arguments) + + const date = toDate(dirtyDate) + const amount = toInteger(dirtyAmount) + if (isNaN(amount)) { + return new Date(NaN) + } + if (!amount) { + // If 0 days, no-op to avoid changing times in the hour before end of DST + return date + } + date.setDate(date.getDate() + amount) + return date +} -- cgit v1.2.3