HTML, Javascript. RegEx on numbers

Question

I have an input field for phone numbers. If the first number is 8, it should be automatically removed when a person types it.

If a person starts writing a number with t

Answer 1

Amazingly, you don't need JavaScript:

<input type="tel" name="phone" pattern="[^8].*"
                                      title="Numbers cannot start with 8" />

And it will work even if the user has JavaScript disabled :)