Passing a class as an argument

Classes, like functions, are first class citizens in JavaScript. This means that they can be returned from functions or passed as arguments. In this recipe, we'll see how to use the latter.

Getting ready

This recipe assumes you already have a workspace that allows you to create and run ES modules in your browser. If you don't, please see the first two chapters.

How to do it...

1. Open your command line application and navigate to your workspace.
2. Create a new folder named 08-08-passing-class-as-an-argument.
3. Copy or create an index.html that loads and runs a main function from main.js.
4. Create a main.js file that defines a new class named Rocket:

// main.js 
class Rocket {
  constructor(name) { 
    this.name = name; 
  }
}

5. Create a class named InactiveRocket that extends the Rocket class and assigns a name and a lastFlow property in the constructor:

// main.js 
class InactiveRocket extends Rocket { 
 constructor(name, lastFlown) { 
    super(); 
    this.lastFlown = lastFlown...