Learning Node.js Development

Creating an example promise

In the Atom, inside the playground folder, we'll create a new file and call it promise.js. Before we define promises and talk about exactly how they work, we will run through a simple example because that is the best way to learn just about anything—going through an example and seeing how it works.

To get started, we'll work through a very basic example. We'll stick to the core promise features.

To get started with this very simple example, we'll make a variable called somePromise. This will eventually store the promise object. We'll be calling various methods on this variable to do something with the promise. We'll set the somePromise variable equal to the return result from the constructor function for promises. ...