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Apprentice

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FinalizationRegistry

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Exercises (10)

○FinalizationRegistry — instanceof
Beginner
○FinalizationRegistry — typeof
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○FinalizationRegistry — typeof constructor
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○FinalizationRegistry — has register method
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○FinalizationRegistry — has unregister method
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○FinalizationRegistry.register — is a function
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○FinalizationRegistry.register — does not throw
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○FinalizationRegistry.register — unregister available
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○FinalizationRegistry — instanceof check
Beginner
○FinalizationRegistry — unregister on prototype
Beginner