MACROMEDIA FLASH MX 2004 - ACTIONSCRIPT - Page 230

230 Chapter 12: ActionScript Dictionary
Example
In the following example, the variable happy is set to false. The if condition evaluates the
condition
!happy, and if the condition is true, the trace() action sends a string to the
Output panel.
happy = false;
if (!happy) {
trace("don’t worry, be happy");
}
!= (inequality)
Availability
Flash Player 5.
Usage
expression1 != expression2
Parameters
None.
Returns
A Boolean value.
Description
Operator (inequality); tests for the exact opposite of the == operator. If expression1 is equal to
expression2, the result is false. As with the == operator, the definition of equal depends on the
data types being compared.
• Numbers, strings, and Boolean values are compared by value.
• Variables, objects, arrays, and functions are compared by reference.
Example
The following example illustrates the result of the != operator:
5 != 8 returns true
5 != 5
returns false
This example illustrates the use of the != operator in an if statement.
a = "David";
b = "Fool"
if (a != b){
trace("David is not a fool");
}
See also
!== (strict inequality)
, == (equality), === (strict equality)