Question

2 in JavaScript.
_____ is used to display whether a value is a number or not.​

Answer 1

global isNaN

The global isNaN() function, converts the tested value to a Number, then tests it. Number. isNaN() does not convert the values to a Number, and will not return true for any value that is not of the type Number.

Answer 2

Answer:

global isNaN is used to display whether a value is a number or not.