[CKPackager] JavaScript delete statement breaks minified code

[Marc Nilius]

I wrote a CKEditor plugin and used CKPackager to create a new ckeditor.js. This new file had some javascript errors. This happened, because the CKPackager broke a code snippet when it tried to minify this snippet. I added a unit test to the test.js:
[ "function(){var a;delete a;}" ]
This test fails, too. The result of this test is
"function(){var a;delete a.a;}"

Now I always have to fix this manually in the created ckeditor.js. Would be great, if this could be fixed.

Thanks in advance.

Greets, Marc

[Frederico Caldeira Knabben]

Ok, valid ticket, but be aware that ​"delete" cannot be used to delete local variables, just object properties. So you would do better fixing your code, avoiding the CKPackager issue.

[Marc Nilius]

Hi!

Yes, you are right. Thanks for this info. In my context this statement was useless. Although, this is valid javascript (just returning false) and it should not break on minification.

[Jakub Ś]

I have inserted the below into link.js

function myX(){var a;delete a;}

and received

function A(){var G;delete G.a;}