Dom Manipulation - Js Templating vs programmatic jQuery (v35)

Revision 35 of this benchmark created on

Description

What is faster, generating elements on the fly using jQuery appends and generator or using javascript templates.

Preparation HTML

<script src="http://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.1.7/underscore-min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>

<!-- The Javascript template - using underscore.js -->
<script type="text/template" id="combo_template">
    <select> 
    <% _.each(values, function(value) { %>
        <option><%= value %></option>
    <% }); %>
    </select >
</script>

<script>
// Render string templates with placeholders
function stRender(template, data) {
    var matcher = /{([^}]+)}/gi;

    return template.replace(matcher, function(match, param) {
      return data[param.toLowerCase()];
    });
};
var ITEM_TEMPLATE = "<option>{ITEM}</option>";
</script>

<div id="testcontainer" style="display: none;"></div>
<script>
  $("#testcontainer").empty();
  var values = ["SOMETHING", "THOMAS","THOMAS","THOMAS","THOMAS","THOMAS","THOMAS","THOMAS","THOMAS","THOMAS","THOMAS","THOMAS","THOMAS","THOMAS","THOMAS","THOMAS","THOMAS","THOMAS","THOMAS","THOMAS","THOMAS","THOMAS","THOMAS"];
</script>

Test runner

Ready to run.

Testing in
TestOps/sec
Javascript Templates
var html = $("#combo_template").html();
$("#testcontainer").append(_.template(html, {
  values: values
}));
ready
jQuery Append
var combo = $("<select/>");
var blah = values.length;
for( var i = 0; i<blah;i++){
  var value = $("<option/>");
value.text(values[i]);
combo.append(value);
}
$("#testcontainer").append(combo);
ready
Stringed Dom
var HTML = '<select>', blah = values.length;
for( var i = 0; i<blah;i++){
HTML += '<option>' + values[i] + '</option>';
}
HTML += '</select>';
$("#testcontainer").append(HTML);

// Fast but too messy imo
ready
String Templating
var items = [],
    select = $('<select>');

for (var i=0, l=values.length; i < l; i++) {
  items.push(stRender(ITEM_TEMPLATE, { item: values[i] }));
}
$("#testcontainer").append(select.html(items.join('')));
ready

Revisions

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