Using jsfiddle: how can I use the underscore.js or backbone.js libraries?

Question

In jsfiddle you can use, for example, jQuery.
But I do not see any links, for example, for underline or backbone.js.

If I run this demo , I get an error:

 Uncaught ReferenceError: _ is not defined 

How can I use the underscore.js or backbone.js libraries in jsfiddle?

Answer 1

Add the URL of the desired library under the "Add Resources" button on the left.

See http://jsfiddle.net/alnitak/BwHxv/

Answer 2

I use a self-made jsfiddle base with a log included in HTML, so you do not need to open the developer tools:

Includes Trunk and Underline

http://jsfiddle.net/drinchev/NL2z9/2/

Answer 3

I usually started with this: http://jsfiddle.net/dandiebolt/auHFG/

This looks like the first result when searching for "jsfiddle underscore".