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x/date_fns/subHours/index.ts

date-fns Deno package
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import toInteger from '../_lib/toInteger/index.ts'import addHours from '../addHours/index.ts'import requiredArgs from '../_lib/requiredArgs/index.ts'
/** * @name subHours * @category Hour Helpers * @summary Subtract the specified number of hours from the given date. * * @description * Subtract the specified number of hours from 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 hours to be subtracted. 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 hours subtracted * @throws {TypeError} 2 arguments required * * @example * // Subtract 2 hours from 11 July 2014 01:00:00: * const result = subHours(new Date(2014, 6, 11, 1, 0), 2) * //=> Thu Jul 10 2014 23:00:00 */export default function subHours(dirtyDate: Date | number, dirtyAmount: number) { requiredArgs(2, arguments)
const amount = toInteger(dirtyAmount) return addHours(dirtyDate, -amount)}