Mastering JavaScript Promises 🌟
Mastering JavaScript Promises 🌟 Promises in JavaScript are a way to handle asynchronous operations. They can be in one of three states: Pending: The Promise is still running and hasn't resolved yet. Fulfilled: The Promise has finished and it was successful. Rejected: The Promise has finished and it was unsuccessful. Here's a simple example of a Promise: In the above code, and are functions provided by the Promise constructor. We call when we want to indicate that the Promise was successful, and when something went wrong. To handle the result of a Promise, we use for a successful Promise, and for a failed Promise: Or, you can separate the success and failure handlers: Promises are a powerful tool in JavaScript, allowing us to write asynchronous code that is easier to understand and manage. Mastering Promises will make your web development journey much smoother! 🚀
a year ago
