FLASH® LITE™ 2.x - Adobe Help and Support

Tests whether 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;
Operands
object : Object - An ActionScript object.
classConstructor : Function - A reference to an ActionScript constructor function, such
as String or Date.
Returns
Boolean - If object is an instance of or a subclass of classConstructor, instanceof
returns true, otherwise it returns false. Also, _global instanceof Object returns false.
See also
typeof operator
< less than operator
expression1 < expression2
Compares two expressions and determines whether expression1 is less than expression2; if
so, the operator returns true. If expression1 is greater than or equal to expression2, the
operator returns false. String expressions are evaluated using alphabetical order; all capital
letters come before lowercase letters.
Operands
expression1 : Number - A number or string.
expression2 : Number - A number or string.
Returns
Boolean - The Boolean result of the comparison.
Example
The following examples show true and false returns for both numeric and string
comparisons:
144 ActionScript language elements