Skip to content

class03.md

Latest commit

 

History

History
64 lines (57 loc) · 3.38 KB

class03.md

File metadata and controls

64 lines (57 loc) · 3.38 KB

HTML

HTML Lists

are used to specify lists of information. All lists may contain one or more list elements. There are three different types of HTML lists:

  • Ordered List or Numbered List (ol)
  1. ALI
    • Unordered List or Bulleted List (ul)
    • ALI
      • Description List or Definition List (dl)
      example
      ali examples

      HTML Boxes

      • The content — The content can be a text or it can be a another box, as I mentioned above hierarchy of boxes.
      • The padding — The Padding is a space between the content and the border.
      • The border — The border separates the padding and the maring of the box.
      • The margin — The margin is space between the surrounding boxes.

      JAVA SCRIPT

      Basic JavaScript Instructions

      • JavaScript is case-sensitive.

      • Statements should end in a semicolon (;).

      • Variables:

      • Must be defined before being used. The variable name can contain A – Z, a – z, underscore or digits and must start with a letter or an underscore (“_”).

      • Assume the type of the data that is put into the variable. The data type does not have to be explicitly defined

      • Are global variables when defined outside of a function, and are available anywhere in the current script context. Variables created within a function are local variables, and can be used only within that function.

      • Strings have to be enclosed in quotation marks, either a single or double. For example: print(”Hello ” + ‘world ‘+ Country.name) produces the following: Hello world US.

      • Special characters that are displayed literally must be preceded by a backslash character (). Quotes within a string can be entered preceded by a backslash as well.

      • To increment a variable, such as a = a + 1, you can use a++. You can decrement a variable in the same way, as in a--.

      • To enter comments in the script, use "//" to start a single line comment or the combination of "/" and "/" to enclose a multi-line comment.

      • Values that are not defined as a data type (string, number, Boolean) may be defined as an object, such as Date, Array, Boolean, String, and Number. As an example you could define: var ArrayList=new Array(”test”, ” this”, ” list”);.

      • Dots in Service Manager field names must be replaced by an underscore (_) in JavaScript. For example contact.name becomes contact_name.

      • Service Manager field names that are reserved words in JavaScript have to be preceded by an underscore, such as “_class” for the “class” field.

      Decisions and Loops "switch statements"

      A switch statement can replace multiple if checks.

      It gives a more descriptive way to compare a value with multiple variants.

      switch(x) {
      case 'value1': // if (x === 'value1')
      ...
      ###### [break]
      case 'value2': // if (x === 'value2')
      ###### ...
###### [break]
      default:
      ###### ...
###### [break]
      }
      • The value of x is checked for a strict equality to the value from the first case (that is, value1) then to the second (value2) and so on.
      • If the equality is found, switch starts to execute the code starting from the corresponding case, until the nearest break (or until the end of switch).
      • If no case is matched then the default code is executed (if it exists).