Is there a tool to remove unused methods in javascript?

Question

I\'ve got a collection of javascript files from a 3rd party, and I\'d like to remove all the unused methods to get size down to a more reasonable level.

Does anyone

Answer 1

Following would help:

1. If you have fully covered test cases, running Code Coverage tool like istanbul (https://github.com/gotwarlost/istanbul) or nyc (https://github.com/istanbuljs/nyc), would give a hint of untouched functions.

2. At least the above will help find the covered functions, that you may thought unused.