WeakMapsetbeginner

WeakMap.prototype.set() — returns WeakMap

📖 Usage Example

const wm = new WeakMap()
const k = {}
wm.set(k, 'hello')
wm.set(k, 'world')
wm.get(k)  // → 'world'

Calling set() with the same key overwrites the previous value.

WeakMap set() Chaining

wm.set(k, 1) returns the WeakMap itself, enabling chaining.

Challenge: Verify set returns the WeakMap.

💡 Hints (1)

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