How to group input names and display them separated by commas?

Question

JavaScript

Here is an example

. I have 3 groups of fields: platform, status and cause, they have values ​​(input name) respectively.

So the problem is that how can I group these fields using join separated by commas at the very bottom?


I tried using split('-') first, but my name inputs have more than 2 dashes.

Those. I need the output fields to be without the prefix: platform-, status- and cause-, and like this: opensea, makersplace, foundation, etc.