Which of these methods can be used to check whether the given value is a number or not?
A. isNaN()
B. isNumber()
C. checkNaN()
D. checkNumber()
Answer:A
Which of these methods can be used to check whether the given value is a number or not?
A. isNaN() B. isNumber() C. checkNaN() D. checkNumber()
Explanation: isNaN() methods returns true if num specified is not a number, otherwise it returns false.