For observing inputs, you might consider using reactive forms and subscribing to the valueChanges observable on the form or formControl in question.
Ohh true, I did not consider this approach, I didn't like to have to pass in the element reference to fromEvent, I don't usually like manipulating elements directly so the reactive form could be a really nice solution.
Thanks for the info!
That won't help with enter key which is often used.
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