MACROMEDIA FLASH 8-FLASH LITE 2.X ACTIONSCRIPT LANGUAGE - Instanceof Operator

154 ActionScript language elements
Tests for the exact opposite of the equality (==) operator. If expression1 is equal to
expression2, the result is false. As with the equality (==)operator, the definition of equal
depends on the data types being compared:
■ Numbers, strings, and Boolean values are compared by value.
■ Objects, arrays, and functions are compared by reference.
■ Variables are compared by value or by reference depending on their type.
Availability: ActionScript 1.0; Flash Lite 1.0
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.
See also
!= inequality operator
instanceof operator
object instanceof classConstructor
Tests w h e t h e r object is an instance of classConstructor or a subclass of
classConstructor. The instanceof operator does not convert primitive types to wrapper
objects. For example, the following code returns
true:
new String("Hello") instanceof String;
Whereas the following code returns false:
"Hello" instanceof String;
Availability: ActionScript 1.0; Flash Lite 2.0
Operands
object : Object - An ActionScript object.
classConstructor : Function - A reference to an ActionScript constructor function, such
as
String or Date.