Function checkIsoCompat

date.js:134–195

()

	}

	function checkIsoCompat () {
		// fix Date constructor

		var newDate = (function () {
			// Replacement Date constructor
			return function Date (y, m, d, h, mn, s, ms) {
				var len, result;

				// Date called as function, not constructor
				if (!(this instanceof newDate)) return origDate.apply(this, arguments);

				len = arguments.length;

				if (len === 0) {
					result = new origDate();
				}
				else if (len === 1) {
					result = new origDate(base.isString(y) ? newDate.parse(y) : y);
				}
				else {
					result = new origDate(y, m, d == undef ? 1 : d, h || 0, mn || 0, s || 0, ms || 0);
				}

				result.constructor = newDate;

				return result;
			};
		}());

		if (!isoCompat()) {

			newDate.now = origDate.now;
			newDate.UTC = origDate.UTC;
			newDate.prototype = origProto;
			newDate.prototype.constructor = newDate;

			newDate.parse = function parse (str) {
				var result;

				// check for iso date
				result = isoParse('' + str);

				if (isInvalidDate(result)) {
					// try original parse()
					result = origParse(str);
				}

				return result;
			};

			// Unfortunate. See cujojs/poly#11
			// Copy any owned props that may have been previously added to
			// the Date constructor by 3rd party libs.
			copyPropsSafely(newDate, origDate);

			Date = newDate;
		}
		else if (Date != origDate) {