50 lines
1.8 KiB
JavaScript
50 lines
1.8 KiB
JavaScript
function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
|
|
|
|
import toDate from "../toDate/index.js";
|
|
import requiredArgs from "../_lib/requiredArgs/index.js";
|
|
/**
|
|
* @name max
|
|
* @category Common Helpers
|
|
* @summary Return the latest of the given dates.
|
|
*
|
|
* @description
|
|
* Return the latest of the given 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?
|
|
* const 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) {
|
|
requiredArgs(1, arguments);
|
|
var 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);
|
|
}
|
|
|
|
var result;
|
|
datesArray.forEach(function (dirtyDate) {
|
|
var currentDate = toDate(dirtyDate);
|
|
|
|
if (result === undefined || result < currentDate || isNaN(Number(currentDate))) {
|
|
result = currentDate;
|
|
}
|
|
});
|
|
return result || new Date(NaN);
|
|
} |