How to catch event.keyCode and change it to another keyCode?

Question

I have checked other questions here at SO, however they do not answer my question. I want to simply catch certain keyCode and replace it with another. I am working with char

Answer 1

Keyboard event properties are all READ-only. You cannot capture one keyCode and change it to another.

See reference from MDN - Keyboard Events - All are read only can't be set.

As you mentioned in your post. -- If you wan't to handle, then you have to stop browser default key press and set the desired value to the element yourself.