Differentiate which keyboard (not key) was pressed in Javascript -

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this question has answer here:

i have 2 usb keyboards plugged in. how can determine 1 pressed?

i can use keycode events don't see getting read on keyboard used.

gamepads, on other hand, have index gamepad in navigator's list used. i'm looking that.

how can determine 1 pressed?

you can't. keyboradevent doesn't contain such information.


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