If a JavaScript variable's value,which has not been declared previously,is used or displayed on a Web page,JavaScript assigns the value "____" to that variable.
A)undeclared
B)baseless
C)undefined
D)null

Question

Quizplus · Accepted Answer

If a variable is used without being declared or assigned any value, its value becomes "undefined". This means that the variable technically exists, but it has no defined value.

If a JavaScript Variable's Value,which Has Not Been Declared Previously,is