Operators
173
!== strict inequality operator
expression1
!==
expression2
Tests for the exact opposite of the strict equality (
===
)operator. The strict inequality operator
performs the same as the inequality operator except that data types are not converted.
If
expression1
is equal to
expression2
, and their data types are equal, the result is
false
.
As with the strict equality (
===
) operator, the definition of equal depends on the data types
being compared, as illustrated in the following list:
■
Numbers, strings, and Boolean values are compared by value.
■
Objects, arrays, and functions are compared by reference.
■
A variable is compared by value or by reference, depending on its type.
Availability:
ActionScript 1.0; Flash Lite 2.0
Operands
expression1 :
Object
- A number, string, Boolean value, variable, object, array, or
function.
expression2 :
Object
- A number, string, Boolean value, variable, object, array, or
function.
Returns
Boolean
- The Boolean result of the comparison.
Example
The comments in the following code show the returned value of operations that use the
equality (
==
), strict equality (
===
), and strict inequality (
!==
) operators:
var s1:String = "5";
var s2:String = "5";
var s3:String = "Hello";
var n:Number = 5;
var b:Boolean = true;
trace(s1 == s2); // true
trace(s1 == s3); // false
trace(s1 == n); // true
trace(s1 == b); // false
trace(s1 === s2); // true
trace(s1 === s3); // false
trace(s1 === n); // false
trace(s1 === b); // false
trace(s1 !== s2); // false
trace(s1 !== s3); // true
trace(s1 !== n); // true
trace(s1 !== b); // true
Summary of Contents for FLASHLITE2 ACTIONSCRIPT-LANGUAGE
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