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- import toDate from "../toDate/index.js";
- import requiredArgs from "../_lib/requiredArgs/index.js";
- /**
- * @name startOfSecond
- * @category Second Helpers
- * @summary Return the start of a second for the given date.
- *
- * @description
- * Return the start of a second for the given date.
- * The result will be in the local timezone.
- *
- * @param {Date|Number} date - the original date
- * @returns {Date} the start of a second
- * @throws {TypeError} 1 argument required
- *
- * @example
- * // The start of a second for 1 December 2014 22:15:45.400:
- * const result = startOfSecond(new Date(2014, 11, 1, 22, 15, 45, 400))
- * //=> Mon Dec 01 2014 22:15:45.000
- */
- export default function startOfSecond(dirtyDate) {
- requiredArgs(1, arguments);
- var date = toDate(dirtyDate);
- date.setMilliseconds(0);
- return date;
- }
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