Jake Archibald 7/30/2024

Garbage collection and closures

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This article details an unexpected JavaScript memory leak scenario. When a closure (like a setTimeout callback) references a large variable, and a separate, unreferenced closure from the same function is kept alive, the large variable is not garbage collected, even though it's no longer accessible. The post explains the mechanics with code examples and shows how to fix the leak.

Garbage collection and closures

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