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Learn Coding Basics in JavaScript

Solution: Getting Classy

Explore how to create JavaScript classes, define constructors, and use inheritance to build extended objects. Understand object-oriented principles by implementing a Car class and extending it with an ElectricCar subclass.

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Solution

Here is a possible solution for implementing car classes:

Javascript (babel-node)
class Car {
  constructor(make, model) {
    this.make = make;
    this.model = model;
  }
}
class ElectricCar extends Car {
  constructor(make, model, range) {
    super(make, model);
    this.range = range;
  }
}
// Create an instance of ElectricCar
const electricCar = new ElectricCar('Tesla', 'Model 3', 250);
console.log(electricCar.make);
console.log(electricCar.model);
console.log(electricCar.range);

Explanation

  • Line 1: Defines a class called Car.

  • ...