There is legit use of this in the wild, my favourite example is from prosemirror: https://github.com/ProseMirror/prosemirror-example-setup/blob/master/src/keyma

There is legit use of this in the wild, my favourite example is from prosemirror: https://github.com/ProseMirror/prosemirror-example-setup/blob/master/src/keymap.js#L67 https://github.com/ProseMirror/prosemirror-example-setup/blo...