___________ returns ‘true’ if given value is not a number. It returns ‘false’ if given value is number.
A. prompt()
B. confirm()
C. toLowerCase()
D. isNaN()
Answer:D
___________ returns ‘true’ if given value is not a number. It returns ‘false’ if given value is number.
A. prompt() B. confirm() C. toLowerCase() D. isNaN()