Hopding / js-visualizer-9000-client

A React app to interactively visualize JavaScript's Event Loop
https://jsv9000.app
1.12k stars 129 forks source link

Task queue is not extrictly FIFO. #33

Open hrivera2014 opened 2 years ago

hrivera2014 commented 2 years ago

Task queue is not extrictly FIFO, as this code demonstrate.

const promise1 = new Promise((resolve, reject) => {
  setTimeout(resolve, 3000, 'one');
});

const promise2 = new Promise((resolve, reject) => {
  setTimeout(resolve, 0, 'two');
});

Promise.race([promise1, promise2]).then(function race(value) {
  console.log(value);
  // Both resolve, but promise2 is faster
});
// expected output: "two"
Vaibhavatchicmic commented 1 year ago

yes it is