Functions and Object

Object

Collection of values, can have properties or method (Still a function but called a method when its sitting in an object)

var person = new Object();
//Properties:
person["firstname"] = "Tony"
person["lastname"] = "Alicea"

var firstNameProperty = "firstname" 

console.log(person[firstNameProperty]); - Called Computed member access
console.log(person.firstname) - Called member access

person.address = new Object()
person.address.street = "111 Main St."

console.log(person.address.street);
console.log(person.["address"]].["street"]);

Object Literals

Object Literals

var person = {} is the same as var person = new Object();
Not an operator, Javascript Engine assumes it is creating an object when it sees {}

Can initialise properties and methods:

var person = {
    firstname: 'Tony'
    lastname: 'Alicea'
}

Functions are Object

First class function: 
    - Everything you can do with other types you can do with functions
    - Assign them to variables, pass them around, create them on the fly

Function: special type of object, resides in memory 
    - Can attached properties and method or function to a function 
    - Some hidden special properties 
        - NAME (Optional - can be anonymous)
        - CODE (Where the actual lines of code you wrote sits) : It is Invocable ()

Example of adding a property to a function:
function greet(name) { //NAME : greet //CODE: console.log('hi')
    console.log('Hi'); 
}
greet.language = 'english'

console.log(greet), we get the text of the function that we wrote:

function greet(name) {
    console.log('Hi'); 
}

if we access the property in the function: 
console.log(greet.language), we get: 'english'