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<!DOCTYPE html>
    <meta charset="utf-8">
    <title>Achieving inheritance with prototypes</title>
    <link rel="stylesheet" href="qunit/qunit-1.18.0.css">
    <div id="qunit"></div>
    <div id="qunit-fixture"></div>
    <script src="qunit/qunit-1.18.0.js"></script>
    <script type="text/javascript">
        QUnit.test("Achieving inheritance with prototypes", function(assert){
			function Person() {}
			Person.prototype.dance = function() {};
			function Ninja(){}
			Ninja.prototype = new Person();
			var ninja = new Ninja();
			assert.ok(ninja instanceof Ninja,
				"ninja receives functionality from the Ninja prototype");
			assert.ok(ninja instanceof Person, "... and the Person prototype");
			assert.ok(ninja instanceof Object, "... and the Object prototype");
			assert.ok(typeof ninja.dance == "function", "... and can dance!");
			Person.prototype.name = function() { return true };
			assert.ok(ninja.name(), "... and live update by superclass");
    </script>

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