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
To this:
x == undefined ? 0 : object.error
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Answer
Is it JS or Python?
Anyway, try capturing the line with:
(([^ t]+)[ t]*??[ t]*d+)
This expression returns two groups:
- The line to be replaced
- The
object.error
You then need to replace group#1 by x == undefined ? 0 : group#2