15.
How can JavaScript be used for form validation?
Checking for empty fields
Validating email addresses to make sure they follow a specific format
Verifying password strength
Confirming matching passwords
Correct: A, B, C, D
JavaScript can be used to perform form validation by checking for empty fields, ensuring that all required information is provided. It can also validate email addresses to make sure they follow a specific format. Additionally, JavaScript can be used to verify the strength of a password by checking for a minimum length and the inclusion of certain characters. Lastly, JavaScript can be used to compare and confirm that two password fields have matching passwords before a form is submitted.