Does not support another keyboard layout

[cchoochot]

My working application is in Thai language. The following line of code will count character 'ม' as typing ','.
if ( event.keyCode == 188 || event.keyCode == 13 || event.keyCode == 9 ) {

Would it be possible to make it check the typing key by using another event property?

I have tested on Google Chrome that event.key returned different result for 'ม' and ',' characters but not quite sure about the other impact.

event.key of ',' returns ','
event.key of 'ม' returns 'ม'

Or could it be possible for the developer to be able to configure these tag separators?