How do I write a blocking synchronous method in Javascript?

Question

I\'m trying to mock out a method which takes a long time for testing purposes but can\'t find a good way to do this in Javascript. Any good approaches besides writing a very

Answer 1

If you can use the newer await/await syntax:

function sleep (time) {
  return new Promise((resolve) => setTimeout(resolve, time));
}

async function example() {
    await sleep(4000);
    return 1;
}

console.log(await example());