How can I handle errors when using Promise.all in React?

How can I handle errors when using Promise.all in React?

You can handle errors in Promise.all by using try-catch blocks or by handling rejections individually.

Can you show me an example of using try-catch with Promise.all?

Sure! Here's a simple example:

async function fetchData() {
  try {
    const results = await Promise.all([
      fetch('/api/data1'),
      fetch('/api/data2')
    ]);
    // Process results
  } catch (error) {
    console.error('Error fetching data:', error);
  }
}

What if one of the promises fails? Will the others still resolve?

No, if one promise fails, Promise.all will reject immediately, and you won't get the results of the other promises.

How can I handle errors for individual promises in that case?

You can use Promise.allSettled instead, which will wait for all promises to settle, regardless of their outcome.