Reading 06 PROBLEM DOMAIN, OBJECTS, and the DOM

Understanding the problem….. article

- By John Sonmez. (2013) Simple Programmer

• Believed by some to be the hardest thing to learn, the problem domain is like puting together a puzzle with no pictue
• getting good at problem domains should make you a better coder

Ch 3 Object literals pp100-105

• in objects
  • variables become propertys
  • function become smethod
• most common way to create object
  • literal notation
  • You access prperties or methos in a object using dot notation or using square brackets

    var hotel = {
    name:'hotelname',
    rooms: 40,
    booked: 25,
    checlAvailability: function() {
    return this.rooms - this.booked;
    }
    }; 
    

• Can use diffrent ways to create objects
  • Literal notation
  • object constructor notation

ch 5 DOCUMENT OBJECT MODEL pp. 183-242

• DOM specifies how browsers should create a model of an html page and show JS how to access and update while in browser window
• DOM tree stores in browsers memory
  • consist of four main types of nodes
    • document node
    • element nodes
    • attribute nodes
    • textn nodes
• steps
  • Step 1 ACCESS elements
  • step 2 WORK with those elements
• DOM may return one element or a Nodelist
• Duckett, J.(2014). JAVASCRIPT & JQUERY