there you will find Javascript basics, and how DOM mainpulation working in pig game , and you will find Javascript deeper contain examples about scoping and hoisting and closure and more of deepth structures , and Budget App is a big application by javascript how use all js basics and js deeper in one app and using controllers.

• Variables
• Operators
• if/else statements
• boolean logic and switch
• Functions
• Statements and expressions
• Arrays
• Objects
• Objects and methods
• Loops

• Hoisting
• Scoping
• this keyword
• Function constructor
• Object.create
• Different between Primitives, Objects and Functions
• Passing functions as arguments
• Functions returning functions
• IIFE (Immediately Invoked Function Expression)
• Closures
• Bind, call and apply

• let and const
• Destructuring
• Blocks & IIFEs
• Strings
• Classes
• Classes and Subclasses
• Spread Operator
• Arrays
• Arrow Functions
• Arrow Functions part 2
• Rest Parameters
• Default Parameters
• Maps
• Proxies
• Promises

• Creational
  • Constructor
  • Factory
    • Abstract Factory
  • Singleton
  • Builder
• Behavioral
  • Command
  • Observer
  • Iterator
  • Mediator
  • State
• Structural
  • Adapter
  • Facade
  • Decorator
  • Flyweight

• Create HTML String with placeholder text
• Replace the placeholder text with some actual data
• Insert the HTML into the DOM
• DOM Mainpulation and how it work
• Get Field input data
• add the item to the budget controller
• add the item to the UI
• Calculate the budget
• Display the budget on the UI