I'm trying to find a way in IntelliJ IDEA/Webstorm to inspect a large JavaScript project and show line counts of functions. Is there any such feature or plugin available?
You should enable inspection JavaScript | JavaScript function metrics | Overly long function
in Settings | Inspections
, set target line count and trigger Analyze | Run inspection by name
on your project to get all resuls in one place. But it seems anonymous functions are not reported.