javascript - Is it possible to use Closure Compiler ADVANCED_OPTIMIZATIONS with jQuery?

Question

I keep getting errors that the function (renamed) does not exist for the given object. Is there a release or setting or something to make it work?

Answer 1

You must use an externs file for jQuery when using Closure Compiler Advanced Mode with jQuery. Extern file will tell compiler these are reserved methods and accept these argument and argument data types should be like that, so do not minify method names and check argument data types in that way.

You can get externs file which is created by Google Developers here. This file generated for jQuery-1.4.3. But currently probably will work any version of jQuery. Newly added methods may not include in that file, so you should add it to externs file, syntax and synonyms are so simple.

Also you can say location of externs file to compiler by using an extra compier flag. Syntax should be like this

--compiler_flags= "--externs=path/to/jquery.externs.js"

Also you can use this tool which is an online externs extractor for Closure Library.