Add moment.isDate method

moment.js

@@ -2126,6 +2126,8 @@
  return toInt(input) + (toInt(input) > 68 ? 1900 : 2000);
  };
 
+ moment.isDate = isDate;
+
  /************************************
  Moment Prototype
  ************************************/

test/moment/is_date.js

@@ -0,0 +1,32 @@
+var moment = require('../../moment');
+
+exports.add = {
+ setUp : function (done) {
+ moment.createFromInputFallback = function () {
+ throw new Error('input not handled by moment');
+ };
+ done();
+ },
+
+ 'isDate recognizes Date objects' : function (test) {
+ test.ok(moment.isDate(new Date()), 'no args (now)');
+ test.ok(moment.isDate(new Date([2014, 02, 15])), 'array args');
+ test.ok(moment.isDate(new Date('2014-03-15')), 'string args');
+ test.ok(moment.isDate(new Date('does NOT look like a date')), 'invalid date');
+ test.done();
+ },
+
+ 'isDate rejects non-Date objects' : function (test) {
+ test.ok(!moment.isDate(), 'nothing');
+ test.ok(!moment.isDate(undefined), 'undefined');
+ test.ok(!moment.isDate(null), 'string args');
+ test.ok(!moment.isDate(42), 'number');
+ test.ok(!moment.isDate('2014-03-15'), 'string');
+ test.ok(!moment.isDate([2014, 2, 15]), 'array');
+ test.ok(!moment.isDate({year: 2014, month: 2, day: 15}), 'object');
+ test.ok(!moment.isDate({toString: function () {
+ return '[object Date]';
+ }}), 'lying object');
+ test.done();
+ }
+};