WeakMapgetbeginner

WeakMap.prototype.get() — missing key returns undefined

📖 Usage Example

const wm = new WeakMap()
const k = {}
wm.get(k)  // → undefined (not set)

get() returns undefined when the key has no associated value.

WeakMap get() Missing Key

wm.get(key) returns undefined when the key has no entry.

Challenge: Verify undefined for missing key.

💡 Hints (1)

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