QuestenaUn entraînement qui indique quoi revoir ensuite
RechercheCréer un test
Question 20

Spot the false classification of a value as falsy.

  1. NaN is falsy
  2. 0n is falsy
  3. The string "0" is falsyBonne réponse
  4. The empty string is falsy

Explication

The string "0" is nonempty and therefore truthy, so classifying it as falsy is incorrect. Numeric zero is falsy, but a string's textual appearance does not turn it into the corresponding number.

Continuer avec ce test

Commencer l’entraînement
Comprendre ce thème (≈6 min)Retour au test
Question 20: Spot the false classification of a value as falsy. · JavaScript Fundamentals · Questena