Please enable JavaScript.

Coggle requires JavaScript to display documents.

Lesson 8 - Coggle Diagram

- - - - Fixed Values are known as literals. Rules: Numbers must be written with or without a decimal.
        Strings are text, written within double or single quotes. " " ' '.
    - - Variable values are known as variables. These are used to store data. Javascript uses 'var' to declare the variable. Followed by an = sign which assigns the values to the variables. Rules for variables: All variables must be identified with unique names.
      - Identifiers
        
        Rules
        
        Names can contain letters, digits, underscores, and dollar signs.
        
        Names must begin with a letter
        
        Names can also begin with $ and _ (but we will not use it in this tutorial)
        
        Names are case sensitive (y and Y are different variables)
        
        Reserved words (like JavaScript keywords) cannot be used as names
    - - An = sign does not mean equal to, but is an assignment. To make something equal to, you must place it as ==.
- - - - getElementByID() - This returns elements matching given ID
      - getElementByTayName() - This returns the element matching name (p, a, div, etc.)
      - getElementByTayNameNSC() - This returns the element matching nanospace URL and tay name
- - - - Is a recipe we direct the
        computer to execute that results in a particular display or action.
    - - adjusts and responds to such actions by end users. JavaScript also expands the opportunities to animate displays, that is, to have parts of the display move and update while an end user watches.
    - - Function is a segment of a program
        defined and performed in isolation from other parts.
    - - The names of variables and functions.
    - - It enables an end user to take an action
        in an application, usually by clicking a button or pressing a key
    - - Is collection of resources, like pre-written function code and subroutines, that
        developers use to create programs.
      - JS Library
        
        A JavaScript library is pre-written JavaScript code.
- - - - Submission of a form
      - Keystrokes
      - Other mouse manoeuvres including double-clicks and moving the mouse
      - Selection of an item from a listbox
      - The time when an image has finished loading