174 ActionScript language elements
Returns
Boolean - A Boolean result of the logical operation.
See also
&& logical AND operator
! logical NOT operator
! expression
Inverts the Boolean value of a variable or expression. If expression is a variable with the
absolute or converted value
true, the value of !expression is false. If the expression x &&
y
evaluates to false, the expression !(x && y) evaluates to true.
The following expressions illustrate the result of using the logical NOT (!) operator:
! true returns false! false returns true
Availability: ActionScript 1.0; Flash Player 4
Operands
expression : Boolean - An expression or a variable that evaluates to a Boolean value.
Returns
Boolean - The Boolean result of the logical operation.
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() statement sends a string to the
Output panel.
var happy:Boolean = false;
if (!happy) {
trace("don't worry, be happy"); //traces don't worry, be happy
}
The statement traces because !false equals true.
See also
!= inequality operator, !== strict inequality operator, && logical AND
operator
, || logical OR operator, == equality operator, === strict equality
operator
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