Add possibility to fill out multiple email addresses/phone numbers
Add Reset/Submit buttons
On reset - return form to the initial state
On submit - show form results on right side of the screen, you can use either simple output like this: {{ formResults | json }} or build some pretty result block there ;)
Examples used on lecture: source
Nice explanation for Custom form controls (ControlValueAccessor): source
Homework:
{{ formResults | json }}
or build some pretty result block there ;)