How to replace line break with comma in AS3?

Question

ActionScript

Good day
The user enters some values ​​into the TextArea, separating them with a line break. You need to replace these hyphens with commas.
I tried like this:

As you can see, everything is in order with 1 and 2, but then it does not react. What to do?

Answer 1

And is it necessary?
trace(string.replace(/\r/g, ','));

Answer 2

sometimes you still need to replace "\n\r" - it depends where the text was typed