JAVASCRIPTOBJECTS & FUNCTIONSVictor Perez

/ INTRODUCTION

⁄ ⁄ ⁄

● string, number, boolean, null and undefined

● Wrapper objects: String, Number and Boolean

● Object, Function, Boolean, Error, EvalError, RangeError, ReferenceError, SyntaxError,

TypeError, URIError, Number, Math, Date, String, RegExp, Array and JSON

● Host objects

● no class inheritance

● prototype inheritance

OBJECTSINTRODUCING

⁄ ⁄ ⁄

● Objects

● Function scope

● this and arguments

● constructor

● prototype

● return ( default: undefined )

FUNCTIONSINTRODUCING

/ OBJECTS

⁄ ⁄ ⁄

● literal

● constructor

● Object.create

CREATEOBJECTS

⁄ ⁄ ⁄

● Object.constructor

CONSTRUCTOROBJECTS

/ PROTOTYPE

⁄ ⁄ ⁄

● Inheritance

● Any object

● Prototype chain

● Read inheritance

● Write own property

INTRODUCTIONPROTOTYPE

⁄ ⁄ ⁄

EXAMPLEPROTOTYPE

⁄ ⁄ ⁄

EXAMPLEPROTOTYPE

⁄ ⁄ ⁄

● Object.create

PROTOTYPEOBJECTS

⁄ ⁄ ⁄

● Object constructor

PROTOTYPEOBJECTS

/ FUNCTIONS

⁄ ⁄ ⁄

● function statement

STATEMENTFUNCTIONS

⁄ ⁄ ⁄

● function expression

● The name is only available inside the

function

EXPRESSIONFUNCTIONS

⁄ ⁄ ⁄

● Function constructor

○ eval

○ global scope

CONSTRUCTORFUNCTIONS

/ THIS

⁄ ⁄ ⁄

GLOBAL CONTEXTTHIS

● Global object

● window in the browser

⁄ ⁄ ⁄

FUNCTION CONTEXTTHIS

● non strict

○ Global object

● strict mode

○ undefined

⁄ ⁄ ⁄

OBJECT METHODTHIS

● Object of the method

⁄ ⁄ ⁄

CONSTRUCTORTHIS

● Object of the new created object

⁄ ⁄ ⁄

CALL & APPLYTHIS

● First parameter will be bound to this

● call

● apply

● convert it to an object

⁄ ⁄ ⁄

BINDTHIS

● returns the same function where this is the same as the first parameter

● this can’t be changed

/ JAVASCRIPT

/ QUESTIONS?

THANKS