Why Promise.then() is Your Go-To Method for Handling Resolutions and Rejections

Understanding Promises in JavaScript

Are you feeling overwhelmed by JavaScript Promises? Don’t worry, you're not alone! Asynchronous programming can feel like a puzzle. But once you get the hang of it, the pieces start falling into place. So, let’s break it down together.

So, What’s a Promise?

Think of a Promise as a fancy delivery service. When you order something online, the company promises to deliver your package. Sometimes it arrives on time (that's resolve), and sometimes it’s delayed or damaged (that's reject). In JavaScript, a Promise works the same way: it promises a value that will be returned at some point in the future.

These promises can be either fulfilled (resolved) or unfulfilled (rejected). And just like in real life, if you want to deal with what happens when your package arrives or falls through, you need effective handling mechanisms.

Here Comes the then() Method

Now, let’s get into the crux of our discussion—the then() method. This method is your one-stop shop for handling both resolutions and rejections of Promises.