Regex for finding all javascript functions including arrow notation?

Question

I'd like to programatically find all javascript functions and add some code for profiling purposes (to count how many times they are called). Is there any existing tool or a regex to do that?

It is relatively easy to write something like:

function\s+\w+\(.*?\)\s*{

But that only begins to cover the multitude of options.

With ES6, method fonctions no longer need the keyword function. I mean obj={fn() {}}. I don't think there's a way to find these with regex, you would need a Javascript parser. — Lorenz Meyer
– Lorenz Meyer, Commented Jun 1, 2017 at 16:40

philipp · Accepted Answer · 2017-06-01 18:10:24Z

2

I have tried something similar and came to the result that a regex is not the weapon of choice for that.

But I would recommend you to have a look here and create a Plugin for Babel. In step 3 »generation« you can probably modify all functions.

edited Jun 1, 2017 at 18:10

answered Jun 1, 2017 at 16:48

philipp

16.6k15 gold badges66 silver badges121 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Tezra · Accepted Answer · 2017-06-01 16:49:31Z

0

Using Google Chrome (assuming universal compliance)...

Hit F12 to open developer console
Find the "Performance" tab and click on it.
Hit record or Ctrl + E to start / stop recording. Chrome will give you everything you need to know. :3

(PS. Just sell your soul to Google! ^w^)

answered Jun 1, 2017 at 16:49

Tezra

8,8734 gold badges37 silver badges72 bronze badges

Collectives™ on Stack Overflow

Regex for finding all javascript functions including arrow notation?

2 Answers 2

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related