Menu
Coddy logo textTech
START LEARNING
flag En iconEnglishdown icon

Recap Challenge

Part of the Object Oriented Programming section of Coddy's JavaScript journey — lesson 20 of 56.

challenge icon

Challenge

You're given a GameCharacter class. Your task is to:

  1. Add a private field #isAlive initialized to true
  2. Add a private method #checkIfAlive() that:
    • Sets #isAlive to true if #health > 0
    • Sets #isAlive to false if #health ≤ 0

Try it yourself

import { GameCharacter } from './GameCharacter.js';

// Test code - don't modify
const warrior = new GameCharacter("Warrior");

warrior.takeDamage(30);
console.log(warrior.getStatus());  // Should output "Alive"

warrior.takeDamage(80);
console.log(warrior.getStatus());  // Should output "Defeated"

All lessons in Object Oriented Programming

1Objects & The this Keyword

Quick Review: ObjectsAdding Methods to ObjectsUnderstanding the this KeywordConstructor FunctionsThe new KeywordRecap Challenge

4Methods & Managing State

Methods that modify stateMethod chaining pattern

7 Inheritance & The extends Key

InheritanceThe "is-a" RelationshipThe extends KeywordThe super() MethodInheriting Properties&MethodsRecap Challenge

10Polymorphism

What is Polymorphism?Overriding Inherited MethodsUsing superRecap Challenge

13Composition vs. Inheritance

The "has-a" vs. "is-a"The Limits of Deep InheritanceBuilding objects

2Organizing Code

What are Modules?Exporting with exportImporting with importDefault vs. Named Exports

5Encapsulation & Access

EncapsulationPublic & Private Class FieldsPrivate MethodsRecap Challenge

8Organizing OOP Code

Organize Classes into Modules

11Project: A Shape Renderer

Setup: Shape Class & ExportCircle Class InheritanceProject lessonOverriding & Area MethodProject lessonStatic Shape CounterProject lesson

14Library Management System

Designing the LibraryBook Class with CompositionProject lessonBook Author ValidationProject lesson

3Classes & Objects

What is a Class?Creating InstancesProperties and MethodsRecap Challenge

6Project: A Simple Bank Account

BankAccount ClassDeposits and WithdrawalsProject lessonBalance as Private FieldProject lesson

9Static Methods & Properties

Class-Level vs. Instance-LevelStatic PropertiesStatic Utility MethodsRecap challenge

12Getters & Setters

The get and set KeywordsComputed PropertiesValidation and Side EffectsRecap Challenge

15 Final Challenges

Game Character BuilderE-commerce Product SystemUniversity Management SystemSmart Home Device System