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javascriptAsync race conditionHard

forEach finishes before the work does

Time: 0:00

What it should do

doubleAll(nums) should resolve to a list with every number doubled.

What goes wrong

doubleAll([1, 2, 3]) resolves to an empty array instead of [2, 4, 6].

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Hints

This is an async and race conditions bug

A missing await, results in the wrong order, and updates that overwrite each other under load.

Learn the async and race conditions pattern

forEach finishes before the work does — JavaScript debugging challenge | BugHunt