Question 220362 in Javascript Question posted in
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Javascript – does await block code outside of the async function containing the await?

setInterval(() => {
  // do some stuff
}, 1000)

const foo = async () => {
  const res = await api_call();
  const do_stuff();
}

await foo();

Will the foo function block the setInterval when its callback is due to be executed?

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2

Answers


  1. 0

    I think your question can be down to the prioritization between the callback of setInterval and foo() function under single thread

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  2. 0

    If api_call returns a promise, the await function effectively ‘pauses’ the foo function until something causes the promise to resolve.

    If 1000ms pass before that happens, the timeout code executes first.

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