How does promise chaining work in JavaScript?

How does promise chaining work in JavaScript?

Promise chaining allows you to execute asynchronous operations in sequence. Each promise returns a new promise, enabling you to handle results or errors in a structured way.

Can you give me an example of promise chaining?

Sure! Here's a simple example:

fetch('https://api.example.com/data')
  .then(response => response.json())
  .then(data => console.log(data))
  .catch(error => console.error('Error:', error));

What happens if one of the promises fails?

If a promise in the chain fails, the control jumps to the nearest .catch() block, allowing you to handle the error gracefully.

How can I handle multiple errors in promise chaining?

You can use multiple .catch() blocks or handle errors in a single .catch() at the end of the chain to manage different error scenarios.