WeakRefbeginner

WeakRef — deref returns original object

📖 Usage Example

const ref = new WeakRef({})
ref instanceof WeakRef  // → true

WeakRef instances can be checked with instanceof.

WeakRef deref

new WeakRef(obj).deref() === obj is true.

Challenge: Verify that deref returns the original object.

💡 Hints (1)

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