JS Built-ins
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WeakSetdeletebeginner

WeakSet.prototype.delete() — returns true

📖 Usage Example
const ws = new WeakSet()
const o = {}
ws.add(o)
ws.delete(o)  // → true

delete() removes the object from the WeakSet and returns true if it was present.

WeakSet delete()

ws.delete(obj) returns true when the object was in the set.

Challenge: Verify delete returns true.

💡 Hints (1)
  • • delete() returns true when the object existed in the set.