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

the definition has a block statement, function keyword and parameters and is being assigned to a property of an object

you can tell its a call if it has parenthesis and no code block, method is property of an object, not standalone

Question 3

Describe method definition syntax (structure).

Answer 3

name: function (parametersd) {
code block
}

Question 4

Describe method call syntax (structure).

Answer 4

object.method(arguments)

Question 5

How is a method different from any other function?

Answer 5

Method is a property of an object

Question 6

What is the defining characteristic of Object-Oriented Programming?

Answer 6

objects can contain both data (as properties) and behavior (as methods). takes related data and functionality and wraps them in an object

Question 7

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

Answer 7

Abstraction
Encapsulation
Inheritance
Polymorphism

Question 8

What is “abstraction”?

Answer 8

being able to work with (possibly) complex things in simple ways.

Question 9

What does API stand for?

Answer 9

An application programming interface (API) is a connection between computers or between computer programs.

Question 10

What is the purpose of an API?

Answer 10

In fact, the purpose of every software API is to give programmers a way to interact with a system in a simplified, consistent fashion: aka, an abstraction. part of program to part of program