How to find functions/operators/methods in JS files quickly and easily

I'm looking for an app or a command line tool that can help me quickly find a defined function in a file. The f开发者_高级运维ile in question here is the EXT-debug.js file. I want to override some methods(in this case onRender) however I need to figure out the signature of said functions.

I've yet to try Eclipse or Aptana; I'm looking for a more lightweight solution.

I use agent ransack. It's able to search for files as well as content. I also like the fact that you can run it on demand as it does not use an invasive, indexing service. Agent Ransack

Visual Studio is not exactly a lightweight solution, but I have to recommend it. It's come a long way towards becoming an excellent JavaScript editor.

Visual Studio's IntelliSense is able to infer JavaScript types and give you a dropdown of the functions and values in your object (works pretty well).

Of course, I always have my handy little muscle memory spasm: double-click-select -> Ctrl-C -> Ctrl-Shift-F -> Ctrl-V -> ENTER

And here's a plugin that pre-searches for exact string matches in your entire solution and highlights them for you, so jumping to a function definition is instantaneous. Whole Tomato's Visual Assist X