Variable Declare « Data Type « Flash / Flex / ActionScript

1.To declare a variable using strong typing: var variableName:Datatype;
2.Once a variable has been declared, you can assign a value to it using a simple assignment statement with an equals sign
3.You can also declare the variable and assign a value, or initialize the variable, all on one line
4.It is a good practice to initialize your variables to null when you don't have any other specific value to assign to them
5.Perform operations using variables
6.You can declare several variables on a single line
7.Using Access Controls
8.Overriding Variables
9.Use the this keyword when referring to an instance variable with the same name as a function variable:

10.To declare the data type of a variable, use the colon operator right after the name of the variable.
11.Using Untyped Variables with the Wildcard (*) Data Type