Intermediate
JavaScript
Q60 / 100
What is the purpose of FinalizationRegistry?
Correct! Well done.
Incorrect.
The correct answer is B) Running a callback when a registered object is garbage collected, for cleanup of associated resources
B
Correct Answer
Running a callback when a registered object is garbage collected, for cleanup of associated resources
Explanation
const registry = new FinalizationRegistry(value => { /* cleanup */ }); registry.register(obj, heldValue); fires callback when obj is GC'd.
Progress
60/100