很容易理解的js对象代码模版， 只是不知道如何克隆一个新的对象

Question

<script>

var DED = function() {

	var pvar=3;

	function private_method() {

		// do stuff here
		pvar = 5;

	}

	return {

		method_1 : function() {

			// do stuff here
			private_method();
			alert(pvar);
			pvar = 6;
		},

		method_2 : function() {

			// do stuff here
			alert(pvar);

		}

	};

}();

DED.method_1();
DED.method_2();
</script>

Answer 1

var a = new DED(),
    b = new DED();
a.method_1();
b.method_1();