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is defined shortcut

Hey, guys, right now, if I want to check if a variable is defined before printing it I have to do:

{% if is defined %}{{ }}{% endif %}

Wouldn't it be nice to have a shortcut for this (in case it doesn't exist) ? Something similar to this:

{{ ? "alternative text" }}


Hey, maybe this could work:

{{ a is defined ? "hello" : null }}

Hello from 2016 :)

Very useful, didnt know that!