Intermediate
JavaScript
Q56 / 100
What is the purpose of WeakRef?
Correct! Well done.
Incorrect.
The correct answer is B) Holds a weak reference to an object, not preventing garbage collection, with .deref() to access the object if still alive
B
Correct Answer
Holds a weak reference to an object, not preventing garbage collection, with .deref() to access the object if still alive
Explanation
WeakRef allows checking if an object is still alive without preventing GC. Call .deref() — it returns the object or undefined if collected.
Progress
56/100