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Question 111

Which statements correctly distinguish const reassignment from object mutation? Select all that apply.

  1. Assigning a new value to an initialized const binding throws a TypeErrorCorrect answer
  2. Changing any property of an object held by const always throws
  3. Changing an element of a mutable array held by const is not reassignmentCorrect answer
  4. const recursively freezes every nested object

Explanation

Replacing the value of an initialized const binding is a rebinding attempt and throws a TypeError. Changing a property or array element of a mutable object held by that binding is not rebinding, so const alone does not make nested data immutable.

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Question 111: Which statements correctly distinguish const reassignment… · JavaScript Fundamentals · Questena