4 ms·
isNaN does not tell you whether something is not a Number either. Applying isNaN to any of these returns false: null, true, false, [], "", "cabbage".
by jefftk 5y ago
isNaN does not tell you whether something is not a Number either. Applying isNaN to any of these returns false: null, true, false, [], "", "cabbage".
- dr-detroit 5y ago