javascript regex to prepend string to variable names jupyter

Question

I am migrating a Python code from a Jupyter notebook to a module.
The code presents many variables named like name_arr (eg. time_arr ).
I would like to modify all of them prepending TC. , where TC is the instance
of a class I am progressively building on the side in the python module.

I have a rough idea of how to achieve this on vim (using sed , loops and ifs)
but I'd like to learn how to do it from within Jupyter using Javascript regex.

I've seen many answers on how to do it in a Javascript environment (I don't know Java).
What I don't get is how to do it in Jupyter Find & Replace tool.

Following a JS regex tutorial, I have tried _arr$ but this clearly does not capture all occurrences of the suffix.

Can somebody provide some insight/suggestion on how to do this?
Doing it by hand feels like a silly task, prone to mistakes.
Thank you

Answer 1

You use

\w+_arr\b

and replace with

TC.$&

Details:

• \w+ - one or more word chars
• _arr - a substring
• \b - a word boundary.

$& stands for the whole match value.