12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970
import toDate from '../toDate/index.ts'import requiredArgs from '../_lib/requiredArgs/index.ts'
/** * @name max * @category Common Helpers * @summary Return the latest of the given dates. * * @description * Return the latest of the given dates. * * ### 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). * * - `max` function now accepts an array of dates rather than spread arguments. * *   ```javascript *   // Before v2.0.0 *   var date1 = new Date(1989, 6, 10) *   var date2 = new Date(1987, 1, 11) *   var maxDate = max(date1, date2) * *   // v2.0.0 onward: *   var dates = [new Date(1989, 6, 10), new Date(1987, 1, 11)] *   var maxDate = max(dates) *   ``` * * @param {Date[]|Number[]} datesArray - the dates to compare * @returns {Date} the latest of the dates * @throws {TypeError} 1 argument required * * @example * // Which of these dates is the latest? * var result = max([ *   new Date(1989, 6, 10), *   new Date(1987, 1, 11), *   new Date(1995, 6, 2), *   new Date(1990, 0, 1) * ]) * //=> Sun Jul 02 1995 00:00:00 */export default function max(dirtyDatesArray: Date[] | string[] | number[]): Date {  requiredArgs(1, arguments)
  let datesArray  // `dirtyDatesArray` is Array, Set or Map, or object with custom `forEach` method  if (dirtyDatesArray && typeof dirtyDatesArray.forEach === 'function') {    datesArray = dirtyDatesArray
    // If `dirtyDatesArray` is Array-like Object, convert to Array.  } else if (typeof dirtyDatesArray === 'object' && dirtyDatesArray !== null) {    datesArray = Array.prototype.slice.call(dirtyDatesArray)  } else {    // `dirtyDatesArray` is non-iterable, return Invalid Date    return new Date(NaN)  }
  let result: Date | undefined  datesArray.forEach(function(dirtyDate) {    const currentDate = toDate(dirtyDate)
    if (result === undefined || result < currentDate || isNaN(Number(currentDate))) {      result = currentDate    }  })
  return result || new Date(NaN)}