<script src="http://www.polymer-project.org/platform.js"></script>

<script src="http://www.polymer-project.org/polymer.js"></script>

​

<polymer-element name="wc-foo" constructor="Foo" noscript>

    <template>

       Hello World!

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</polymer-element>

​

<wc-foo></wc-foo>

​

<script>

  document.addEventListener('polymer-ready', function() {

    console.log (window.Foo); // (2)

    var foo = new Foo (); // (3)

    console.log(foo)

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</script>

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</html>