Will console.log prevent garbage collection?

Question

If I have an object that would normally be garbage collected, but has been logged to the console, will it still be eligible for garbage collection?

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Answer 1

If you log an object to the console it can not be garbage collected.

You can verify this by entering in the chrome console:

var Foo = function() {};
console.log(new Foo());

Go to “Profiles” and “Take Heap Snapshot”. This will do a garbage collection automatically. Search for class “Foo”. There will be a 1 in column “Objects count“.