Reading-Notes

Read: 04 - HTML Links, CSS Layout, JS Functions

• Chapter 4: Ch.4 “Links” (pp.74-93)

• Chapter 15: “Layout” (pp.358-404)

• Chapter 3 (first part): “Functions, Methods, and Objects” (pp.86-99 ONLY)

• Article: “6 Reasons for Pair Programming”

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Chapter 4: Ch.4 “Links” (pp.74-93)

• index: the automatic assignment of numbers within an array.
• operators- allow the creation of single values from one or more values
• arithmetic operator: operators used to manipulate numbers

Scripts are made up of a bunch statements. These statements add to each other like a recipe that has a very detailed instructions. Variables are used to store information that can be used within a script. Arrays store multiple pieces of related information.

- Javascript puts boolean values to numbers between 0-9

when using expression they usually evaluate into a single value

expressions rely on operators to calculate a value

Chapter 15: “Layout” (pp.358-404)

• ajax: technique for loading data on page. it allows you to load a certain section of the page rather than reloading the entire page.
• Data-formats: types of code in page, html,xml,json.
  • you can load json from a different sites but it must be a trust source
  • json has double quotes on the key and no quotes on the value

    place script in the bottom of the page to make sure it loads better.

    
    

Responses In Ajax:

• html: Just change the data within html
• xml: is very similar to html but tag names are different. They describe the data they contain.
• json: uses object literal notation

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Chapter 3 (first part): “Functions, Methods, and Objects” (pp.86-99 ONLY)

Delcaring a function:

 keyword   function name
    |          |
function.sayHello(){
  document.write('Hello!'); ----> whats being done 
}

functions store code. if different parts of your code need to repeats task you can just use a function.

Calling a function

sayHello();

functions that need information

                      parameters
                       ^
                       |
function getArea(width,height){
  return width * height;
}          |       |
        the parameters are like
        variables within the function

Parameters vs arguments

• parameters inside the parenthetical width and height are like variables that can be changed. they are like values.
• arguments are variables that are outside the parenthesis that hold real numbers to put in place of width and height

Article: “6 Reasons for Pair Programming”

Pair programing: is a way of programing to tackle a project or task. It works by using a driver and navigator.

• A driver is someone who will be typing the code.
• A navigator is someone who will be handling the mechanics of the coding.

Pair programing works on listening, speaking, reading and writing. It also develops…

• Greater effiency
• Engaged collaboration
• Learning from fellow students
• Social skills
• Job interview readiness
• Work environment readiness