السؤال 15

A variable a refers to an array. Variable b is assigned a, with no new array created. What is a === b?

false because arrays are mutable
undefined because arrays lack equality
true because both refer to one objectالإجابة الصحيحة
true only when the array is empty

الشرح

Both variables refer to the same array object, so strict equality produces true. Equal-looking but separately created arrays would fail this test because object strict equality depends on shared identity.

الشرح

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