You are developing application web form by using HTML5 and JavaScript.
You need to prevent users from submitting form data more than once.Which code segment should you use?
A.
Option A
B.
Option B
C.
Option C
D.
Option D
Explanation:
* this, in disable(this), refers to the clicked button.
* The disabled attribute is a boolean attribute.
When present, it specifies that the <input> element should be disabled.
A disabled input element is unusable and un-clickable.
The disabled attribute can be set to keep a user from using the <input> element until some other condition has
been met (like selecting a checkbox, etc.). Then, a JavaScript could remove the disabled value, and make the
<input> element usable.
HTML <input> disabled Attribute