angular.isDate()
HTML
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.4.1/angular.min.js"></script>
<h1>angular.isDate()</h1>
JavaScript
var date = new Date('2000/01/02');
console.log()
console.log(angular.isDate(date)); // true
var foo = {};
console.log(angular.isDate(foo)); // false