The Modern JavaScript Bootcamp (2019) - Object Oriented Programming

The video introduces object-oriented programming (OOP) in JavaScript, explaining its usefulness and basic concepts. It covers creating and using objects, focusing on code reusability through templates. The video also discusses instances and prototypes, providing a visualization to reinforce these concepts. Finally, it touches on JavaScript internals and prepares viewers for upcoming videos on defining functions and using the 'new' keyword.

What is the primary focus of Object Oriented Programming?

• Data encapsulation

• Code reusability

• User interface design

• Algorithm efficiency

In the context of OOP, what is a 'method'?

• A way to store multiple values

• A type of loop structure

• A function associated with an object

• A variable that holds data

How can we create multiple instances of an object efficiently in JavaScript?

• By using a loop to duplicate the object

• By writing separate code for each instance

• By using a function as a template

• By copying and pasting the object code

What is an 'instance' in Object Oriented Programming?

• A specific realization of an object

• A type of variable

• A copy of a function

• A method within a class

What role does a prototype play in JavaScript OOP?

• It is used to create new variables

• It defines the structure of an object

• It provides shared methods for instances

• It stores data for each instance

Why is it important for objects to have the same properties in a list?

• To ensure they can be sorted alphabetically

• To allow reliable access to their data

• To reduce memory usage

• To make them visually appealing

What is the benefit of using the 'new' keyword in JavaScript?

• It creates a new variable

• It updates an existing method

• It initializes a new instance of an object

• It deletes an existing object