Dmitri Pavlutin • 12/29/2020

Why Promises Are Faster Than setTimeout()?

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This technical article investigates why Promise.resolve().then() executes faster than setTimeout(callback, 0) in JavaScript. It details an experiment, then explains the underlying cause using the event loop model, focusing on the priority of the microtask (job) queue over the macrotask (task) queue.

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#JavaScript #promises #asynchronous programming
Why Promises Are Faster Than setTimeout()?

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