How to confirm entry with Enter key ?

[CharlieEtienne]

I would like users to be able to confirm when they press 'Enter' key.

I'm stuck here:

window.addEventListener('static_edit.editing', function (e) {
    document.addEventListener('keydown', function (e) {
        if (e.key == 'Enter') {
            // What could i write here ?
        }
     });
});