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Tricky JavaScript Scenario #22: WeakSet garbage collection behavior

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01

Understand the problem

Analyze real-world tricky interview scenarios involving WeakSet garbage collection behavior and explain how to control preventing duplicates without leaks.

weaksettrickyreal-world
02

Attempt it yourself

Sketch your approach before reading the solution — that's what interviews test.

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03

Study the solution

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Give it an honest attempt first — then compare your thinking with the full walkthrough.

04

Run the code

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