Angular

<div>
    1 + 2 = {{ 1 + 2 }}
</div>
<pre>form = {{user}}</pre>

<div ng-controller="ngAppDemoController">
    I can add: {{a}} + {{b}} =  {{ a+b }}
</div>

<body ng-app="">
    <script type="text/ng-template" id="/tpl.html">
        Content of the template.
    </script>
    <a ng-click="currentTpl='/tpl.html'" id="tpl-link">Load inlined template</a>
    <div id="tpl-content" ng-include src="currentTpl"></div>
</body>