Another update from ingydotnet^djgoku

Task/Classes/JavaScript/classes-2.js

@@ -0,0 +1,77 @@
+class Car {
+  /**
+   * A few brands of cars
+   * @type {string[]}
+   */
+  static brands = ['Mazda', 'Volvo'];
+
+  /**
+   * Weight of car
+   * @type {number}
+   */
+  weight = 1000;
+
+  /**
+   * Brand of car
+   * @type {string}
+   */
+  brand;
+
+  /**
+   * Price of car
+   * @type {number}
+   */
+  price;
+
+  /**
+   * @param {string} brand - car brand
+   * @param {number} weight - mass of car
+   */
+  constructor(brand, weight) {
+    if (brand) this.brand = brand;
+    if (weight) this.weight = weight
+  }
+
+  /**
+   * Drive
+   * @param distance - distance to drive
+   */
+  drive(distance = 10) {
+    console.log(`A ${this.brand} ${this.constructor.name} drove ${distance}cm`);
+  }
+
+  /**
+   * Formatted stats string
+   */
+  get formattedStats() {
+    let out =
+      `Type: ${this.constructor.name.toLowerCase()}`
+      + `\nBrand: ${this.brand}`
+      + `\nWeight: ${this.weight}`;
+
+    if (this.size) out += `\nSize: ${this.size}`;
+
+    return out
+  }
+}
+
+class Truck extends Car {
+  /**
+   * Size of truck
+   * @type {number}
+   */
+  size;
+
+  /**
+   * @param {string} brand - car brand
+   * @param {number} size - size of car
+   */
+  constructor(brand, size) {
+    super(brand, 2000);
+    if (size) this.size = size;
+  }
+}
+
+let myTruck = new Truck('Volvo', 2);
+console.log(myTruck.formattedStats);
+myTruck.drive(40);