How to make a macro fire as a checkbox in Google Sheets and include a comma to dot replacement in the macro?

Question

Google Apps Script

Please tell me how to implement:
There is a sequence of numbers in column A. You need to use a macro in column B to insert the same values, but with a dot replaced by a comma (for example, from 3.15 to 3.15). As I understand it, it is necessary to add this condition to the macro code.
I would also like to run a macro using an activated checkbox, for example, in cell C2. If the value in this cell is TRUE, then the macro described above is automatically run.

Is there any chance at all to do this?

Answer 1

=ЕСЛИ(C2;arrayformula(REGEXREPLACE(A:A&"";"\,";"."));"")