There are three data sources returning the same information. How to get the response from the fastest one?

If there are multiple data sources returning the same information and you need to get the response from the fastest one, in JavaScript you can use Promise.race. This function takes an array of promises and returns the result of the first one that settles (fulfilled or rejected).

Example:

const source1 = fetch('https://api.source1.com/data');
const source2 = fetch('https://api.source2.com/data');
const source3 = fetch('https://api.source3.com/data');

Promise.race([source1, source2, source3])
  .then(response => response.json())
  .then(data => {
    console.log('Data from the fastest source:', data);
  })
  .catch(error => {
    console.error('Error fetching data:', error);
  });

Thus, you get data from the source that responds first.