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import toDate from '../toDate/index.ts'import requiredArgs from '../_lib/requiredArgs/index.ts'
/** * @name closestTo * @category Common Helpers * @summary Return a date from the array closest to the given date. * * @description * Return a date from the array closest 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). * * - Now, `closestTo` doesn't throw an exception *   when the second argument is not an array, and returns Invalid Date instead. * * @param {Date|Number} dateToCompare - the date to compare with * @param {Date[]|Number[]} datesArray - the array to search * @returns {Date} the date from the array closest to the given date * @throws {TypeError} 2 arguments required * * @example * // Which date is closer to 6 September 2015: 1 January 2000 or 1 January 2030? * var dateToCompare = new Date(2015, 8, 6) * var result = closestTo(dateToCompare, [ *   new Date(2000, 0, 1), *   new Date(2030, 0, 1) * ]) * //=> Tue Jan 01 2030 00:00:00 */export default function closestTo(dirtyDateToCompare, dirtyDatesArray) {  requiredArgs(2, arguments)
  var dateToCompare = toDate(dirtyDateToCompare)
  if (isNaN(dateToCompare)) {    return new Date(NaN)  }
  var timeToCompare = dateToCompare.getTime()
  var datesArray  // `dirtyDatesArray` is undefined or null  if (dirtyDatesArray == null) {    datesArray = []
    // `dirtyDatesArray` is Array, Set or Map, or object with custom `forEach` method  } else if (typeof dirtyDatesArray.forEach === 'function') {    datesArray = dirtyDatesArray
    // If `dirtyDatesArray` is Array-like Object, convert to Array. Otherwise, make it empty Array  } else {    datesArray = Array.prototype.slice.call(dirtyDatesArray)  }
  var result  var minDistance  datesArray.forEach(function(dirtyDate) {    var currentDate = toDate(dirtyDate)
    if (isNaN(currentDate)) {      result = new Date(NaN)      minDistance = NaN      return    }
    var distance = Math.abs(timeToCompare - currentDate.getTime())    if (result == null || distance < minDistance) {      result = currentDate      minDistance = distance    }  })
  return result}