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JavaScript The Solution

When the isNaN method in this challenge finds that the number is number should it not have said isNaN(!num1) ?

to execute the condition statement? because if it comes back as true does is it mean the number is a number and the statement reads - value is not a number? That is what it reads in the solution. A bit confused.

1 Answer

isNan takes the value as a parameter and returns true if the given value is not a number and vice-versa.