justjohn/twig.js — pull request #100 by m-abs (2013-06-15 17:05:00+00:00)
Title: ADDRESSES #99: Treat value === null like value === undefined in filters

A general issue with most of the filters, undefined and null were treated differently but should have been treated the same.

If you load data via AJAX+JSON, variables without a value will equal null and not undefined.