Dom Manipulation - Js Templating vs programmatic jQuery (v15)

Revision 15 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>

<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
Array DOM
var HTML = ['<select>'];
for (var i = 0, len = values.length; i < len; i++) {
    HTML.push('<option>');
    HTML.push(values[i]);
    HTML.push('</option>');
}
HTML.push('</select>');
$('#testcontainer').append(HTML.join(''));

// If you're supporting older versions IE, array join is more efficient than
// string concatenation, however the difference is marginal is modern browsers
ready
String cat + array join
if ( values.length > 0 ) {
    $('#testcontainer').append('<select><option>' + values.join('</option><option>') + '</option></select>');
} else {
    $('#testcontainer').append('<select></select>');
}
ready

Revisions

You can edit these tests or add more tests to this page by appending /edit to the URL.