WeakMapsetbeginner

WeakMap.prototype.set() — null value

📖 Usage Example

const wm = new WeakMap()
const a = {}, b = {}
wm.set(a, 1).set(b, 2)

Chain multiple set() calls to add several entries at once.

WeakMap set() with null

You can store null as a value. wm.get(key) === null.

Challenge: Verify null value storage.

💡 Hints (1)

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