Question

How to check if floating point is NaN in JavaScript

Answer 1

const value = NaN;

console.log(Number.isNaN(value)); 
 
 

/*
run:

true

*/

 

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Answer 2

const value = NaN;

console.log(isNaN(value)); 
 
 

/*
run:

true

*/

 

70+ SQL courses for beginners and professionals

Answer 3

const value = NaN;

console.log(value !== value); 
 
 

/*
run:

true

*/

 

70+ SQL courses for beginners and professionals