In this chapter, we will cover the following recipes:

• Extending a class
• Assigning additional properties with constructor arguments
• Overriding parent class instance methods
• Overriding parent class static methods
• Calling super methods
• Using composition rather than inheritance to add behavior
• Using mix-ins to add behavior
• Passing a class as an argument
• Checking class inheritance with Object.getPrototypeOf
• Using throw to simulate abstract classes