Handlebarsjs JavaScript template engine

<script id="entry-template" type="text/x-handlebars-template">
  <div class="entry">
    <h1>{{title}}</h1>
    <div class="body">
      {{body}}
    </div>
  </div>
</script>

var source   = $("#entry-template").html();
var template = Handlebars.compile(source);

var context = {title: "My New Post", body: "This is my first post!"};
var html    = template(context);

Result

<div class="entry">
  <h1>My New Post</h1>
  <div class="body">
    This is my first post!
  </div>
</div>

References
http://handlebarsjs.com/
https://www.sitepoint.com/overview-javascript-templating-engines/