You develop an HTML5 webpage. You have the following HTML markup:
<input type=”text” id=”username” />
You need to prevent users from entering specific characters into the username field.
What should you do?
A.
Using the keyup event, add an anonymous function that returns true when a specific
character keycode value is determined.
B.
Using the change event, add an anonymous function that returns true when a specific
character keycode value is determined.
C.
Using the keydown event, add an anonymous function that returns false when a specific
character keycode value is determined.
D.
Using the change event, add an anonymous function that returns false when a specific
character keycode value is determined.
Explanation: