TypeScript for Beginners - Adding Methods to Object Interfaces

The video tutorial explains how to define properties and methods in an object interface. It covers adding functions to interfaces and ensuring that all objects implementing the interface provide the necessary method implementations. The tutorial also highlights the importance of compliance to avoid errors, and concludes with a summary of the key points discussed.

What is the primary purpose of defining properties in an object interface?

• To create a new class

• To store data and define methods

• To store data without defining methods

• To define methods without storing data

What must classes or objects do if they comply with an interface that includes a function?

• Ignore the function

• Provide an implementation for the function

• Use the function without implementation

• Delete the function

What happens if a method added to an interface is not implemented in an object?

• The object will function normally

• The object will throw a warning

• The object will throw an error

• The object will ignore the method

How can you access properties of an object within a function defined in an interface?

• Using the object's ID

• Using a global variable

• Using the object's name

• Using 'this' keyword

What is a key takeaway regarding methods in object interfaces?

• Methods are optional in interfaces

• Methods should be defined but not implemented

• Methods must be implemented in all objects using the interface

• Methods can be ignored if not needed