I have a JS file which was created using browserify, and it uses the
?? operator. The problem is, the environment where I am executing this JS file doesn't support that operator yet.
Is there any way I can go through the file, search and replace it using regex?
The change would be from this:
object.error ?? 0
x == undefined ? 0 : object.error
Is it JS or Python?
Anyway, try capturing the line with:
(([^ \t]+)[ \t]*\?\?[ \t]*\d+)
This expression returns two groups:
You then need to replace group#1 by
x == undefined ? 0 : group#2