The Problem: Vue3 Key Events Sometimes (or Always) Fire Twice

If you are using Vue 3, it can be annoying and confusing when key events fire twice.

Here’s the fix:

Solution: Use the .stop Modifier

Instead of @keydown.enter.exact.prevent="brk('node-and-siblings')", use @keydown.enter.exact.stop.prevent="brk('node-and-siblings')".

Notice the .stop modifier.

To translate these modifiers, they mean, in order:

• @keydown is the keydown event you want to capture.
• .enter means use the ‘enter’ key.
• .exact means use the exact keycode (i.e., ‘shift + enter’ won’t fire this event handler).
• .stop means stop the event from bubbling up, only let it fire once.
• .prevent means prevent the default action (whatever else ‘enter’ would have done in context).

Hope you found this helpful!