Regex to match a specific function call and capture arguments using javascript

Question

I want to look for a specific function call statement and if found need to extract the arguments using javascript regex.
for ex: say obj.methodname(arg1,arg2) or obj.methodname(arg1, arg2)
notice the space between the arguments which is possible and the number of arguments is also not fixed.

I tried various regex for the same from SO itself but couldn't get it to work
one of them is /obj.methodname([\w,]*)/.exec(text) but not getting the arguments, only getting methodname

please help

try obj\.methodname\(([\w\s,]*)\)

Avinash Raj
– Avinash Raj

2016-01-28 05:50:20 +00:00
Commented Jan 28, 2016 at 5:50 — Avinash Raj
– Avinash Raj, Commented Jan 28, 2016 at 5:50

nu11p01n73R · Accepted Answer · 2016-01-28 05:51:12Z

3

Something like,

> "obj.methodname(arg1,arg2)".match(/obj.methodname\((.*)\)/)[1].split(",")
< ["arg1", "arg2"]

Further, you can trim the values to get rid of the spaces

> ["arg1", " arg2"].map(function(value){ return value.trim() })
< ["arg1", "arg2"]

answered Jan 28, 2016 at 5:51

nu11p01n73R

26.8k3 gold badges42 silver badges52 bronze badges

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

3 Comments

dandavis Over a year ago

what if i pass a function result: obj.method( "la (LA)".bold(), 342.43); ?

nu11p01n73R Over a year ago

@dandavis that is fine, but this solution will fail if the function call in the argument takes another set of arguments, like obj.method( "la (LA)".bold(10, 20), 342.43). This case is not regular language so we may need a more powerful language to take care of that, and not preferred to be solved using Regex.

Uttara Over a year ago

thats ok, it served my purpose, as I know the function call and its possible arguments, and looking for a specific function call

Collectives™ on Stack Overflow

Regex to match a specific function call and capture arguments using javascript

1 Answer 1

3 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

3 Comments

Your Answer

Sign up or log in

Post as a guest

Related