javascript-custom-methods

Question 1

What is a method?

Answer 1

A method is a function which is a property of an object. There are two kind of methods: Instance Methods which are built-in tasks performed by an object instance, or Static Methods which are tasks that are called directly on an object constructor.

Question 2

How can you tell the difference between a method definition and a method call?

Answer 2

a method definition is a property and also a function inside an object, a method call is to call a function that belongs to an object.

Question 3

Describe method definition syntax (structure).

Answer 3

(property)method name, parenthesis, curly braces for the function code. or (property)method name, colon, function keyword, parenthesis with zero or more parameters, curly braces for the function code.

Question 4

Describe method call syntax (structure).

Answer 4

object name dot method(arguments)

Question 5

How is a method different from any other function?

Answer 5

method is attached to object, function can be separate

Question 6

What is the defining characteristic of Object-Oriented Programming?

Answer 6

take related data and function and put it in an object, Object-oriented programming is a programming paradigm based on the concept of “objects”, which can contain data and code: data in the form of fields (often known as attributes or properties), and code, in the form of procedures (often known as methods).

Question 7

What are the four “principles” of Object-Oriented Programming?

Answer 7

Abstraction, Encapsulation, Inheritance, Polymorphism

Question 8

What is “abstraction”?

Answer 8

a simplified way to work with complex things

Question 9

What does API stand for?

Answer 9

Application programming interface

Question 10

What is the purpose of an API?

Answer 10

it allows apps to send information between each other.