How can I handle errors effectively when using the Fetch API in JavaScript?

How can I handle errors effectively when using the Fetch API in JavaScript?

You can handle errors in the Fetch API by using the .catch() method and checking the response status.

Can you show me an example of handling different types of errors?

Sure! You can check for network errors and HTTP errors separately. Here's a sample code snippet:

fetch(url)
  .then(response => {
    if (!response.ok) {
      throw new Error('Network response was not ok ' + response.statusText);
    }
    return response.json();
  })
  .catch(error => {
    console.error('There has been a problem with your fetch operation:', error);
  });

What about handling timeouts or aborting requests?

You can use the AbortController to handle timeouts. Here's how you can implement it:

const controller = new AbortController();
const signal = controller.signal;

fetch(url, { signal })
  .then(response => response.json())
  .catch(error => {
    if (error.name === 'AbortError') {
      console.log('Fetch aborted');
    } else {
      console.error('Fetch error:', error);
    }
  });

setTimeout(() => controller.abort(), 5000); // abort after 5 seconds