You are developing a web form that includes the following HTML.
You need to ensure that a value is entered into txtValue before the form is submitted.
Which code segment should you use?
A. Option A
B. Option B
C. Option C
D. Option D
You are developing a web form that includes the following HTML.
You need to ensure that a value is entered into txtValue before the form is submitted.
Which code segment should you use?
A. Option A
B. Option B
C. Option C
D. Option D