Operators

Operators

Operators are special functions that take one or more operands and return a value or result (think of the basic arithmetic operators for addition, substraction, multiplication and division as an example).

An operand is also a value: it can be a literal value (a number), a variable (that contains a different valuer at different points through the application), or an expression (of numbers, variables or both). The operator uses the operands as input to return a value.
Link to the Adobe Actionscripting 3.0 operators reference, HERE

Examples of simple operators

Arithmetic Operators for numeric variables (other than string variables). Those all use 2 operands
+
 - * /
plus
minus
times

divided by

var result1: Number = 7.8 + 2
var result2: int = 5-6
var resultFinal = result1 + result2 *5

You can use these operators to perform an operation on the original value:
+=
 -= *= /=
add
minus
times

divided

The example below adds seven to the variable
result1 += 7

those operators can also manipulate Strings
+
 +=
plus
add this

var salutation: String = "Hello"
var playerName1: String = "Princess Leia"
var salutationBegin : String = salutation +playerName1 enter_tf. text = SalutationBegin

enter_tf = salutation += "World"

The operators below only need one operand:
++
increments the variable value by 1
--
decreases the variable value by 1

A variable called i has an initial value of 0. Meanwhile i is less than 10 add 1 to the variable. This runs like a loop.
var i: int = 0 ;
while ( i < 10) {
i ++ ;
}


Condition Statements and comparison operators

The if Statement works like in most programming languages:
if
 (myValue == 1) {
condition
variable
   1 open
doSomething
 () ;
function
   ;
}  
close  

 
==
 Double= is a comparison operator that checks for general equality
= If we used = the value of the variable will change to the number after the parenthesis
> Greater than
>= Greater or equal than
< Less than
<= Less or equal than
!= Is NOT equal
&& And
|| And or
 
if ((myValue == 1) && (myString =="This") ) {
doSomething () ;
}




You can add else and else if to extend the structure to 2 or 3 different conditions
if
 (variable operator number) {
condition
variable
     open
function1()
 ;
}
  

 

else if
 (variable operator number) {
2nd condition
(description of second condition)
 open
function1()
 ;
}
  

 

else
   {
any other
 case open
function3()
 ;
}
  

if (myValue == 1) {
doSomething() ;
}
if else (myValue >1) {
doSomethingElse() ;
}
else {
doSomethingDifferent();
}