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WeakSet

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Exercises (20)

○WeakSet — instanceof
Beginner
○WeakSet — typeof
Beginner
○WeakSet — add and has
Beginner
○WeakSet — iterable constructor
Intermediate
○WeakSet — primitive throws
Intermediate
○WeakSet.prototype.add() — has returns true
Beginner
○WeakSet.prototype.add() — returns WeakSet
Beginner
○WeakSet.prototype.add() — no duplicates
Beginner
○WeakSet.prototype.add() — multiple objects
Beginner
○WeakSet.prototype.add() — chaining
Intermediate
○WeakSet.prototype.has() — added object
Beginner
○WeakSet.prototype.has() — non-added object
Beginner
○WeakSet.prototype.has() — after delete
Beginner
○WeakSet.prototype.has() — different references
Intermediate
○WeakSet.prototype.has() — constructor-initialized
Beginner
○WeakSet.prototype.delete() — returns true
Beginner
○WeakSet.prototype.delete() — returns false
Beginner
○WeakSet.prototype.delete() — has() after delete
Beginner
○WeakSet.prototype.delete() — independent objects
Beginner
○WeakSet.prototype.delete() — double delete
Intermediate