Using Array#slice to get a subset of the array

Sometimes, we want a subset of an array based on the array indices rather than on the contents of the array at those indices. In this recipe, we'll take a look at how to use slice to get a subset of an array.

Getting ready

This recipe assumes that you already have a workspace that allows you to create and run ES modules in your browser. If you don't, refer to 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 10-02-using-slice-to-get-subset.
3. Create a main.js file that defines a new class named Rocket that takes a constructor argument name and assigns it to an instance property:

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

4. Create a main function that creates several Rocket instances and places them into an array:

// main.js 
export function main() { 
  const saturnV = new Rocket('US: Saturn V'); 
  const falconHeavy = new Rocket(...