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سؤال 56

What does an empty array return from every when given any ordinary predicate callback?

  1. false
  2. undefined
  3. trueپاسخ درست
  4. It throws a TypeError

توضیح

every returns true for an empty array because no tested element violates the predicate, an instance of vacuous truth. Returning false would incorrectly require the array to contain at least one passing element.

ادامهٔ این آزمون

شروع تمرین
سؤال 56: What does an empty array return from every when given any… · JavaScript Fundamentals · Questena