How to remove dead code from Javascript [duplicate]

Question

I am trying to remove unused functions from my project. Since it has thousands of lines, this takes forever.

Code coverage tools may suggest functions that are not used in a given test case, but it may be dangerous to rely only on this.

Is there another tool which can help with this?

I fear that tools are your best option - just use more than one tool and rely on their combined output. Save backup of everything and perform full test of everything before going live. — user447356
– user447356, Commented Jul 18, 2011 at 8:39

daveoncode · Accepted Answer · 2011-07-18 08:43:28Z

13

You can try Google Closure compiler. It has different settings and you can also remove dead code automatically. You can try it here: http://closure-compiler.appspot.com/home

For more info read here: http://code.google.com/closure/compiler/docs/compilation_levels.html

answered Jul 18, 2011 at 8:43

daveoncode

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Anderson Green Over a year ago

The "advanced" optimization setting removes dead code automatically.

Community · Accepted Answer · 2017-05-23 11:48:35Z

1

Have a look at this question regarding Javascript static analysis tools.

edited May 23, 2017 at 11:48

CommunityBot

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answered Jul 18, 2011 at 8:46

Nico Huysamen

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