MACROMEDIA FLASH 8-ACTIONSCRIPT 2.0 LANGUAGE - Isfinite Function; Isnan Function

Global Functions 65
isFinite function
isFinite(expression:Object) : Boolean
Evaluates expression and returns true if it is a finite number or false if it is infinity or
negative infinity. The presence of infinity or negative infinity indicates a mathematical error
condition such as division by 0.
Availability: ActionScript 1.0; Flash Player 5
Parameters
expression:Object - A Boolean value, variable, or other expression to be evaluated.
Returns
Boolean - A Boolean value.
Example
The following example shows return values for
isFinite:
isFinite(56)
// returns true
isFinite(Number.POSITIVE_INFINITY)
//returns false
isNaN function
isNaN(expression:Object) : Boolean
Evaluates the parameter and returns true if the value is NaN(not a number). This function is
useful for checking whether a mathematical expression evaluates successfully to a number.
Availability: ActionScript 1.0; Flash Player 5
Parameters
expression:Object - A Boolean, variable, or other expression to be evaluated.
Returns
Boolean - A Boolean value.