User Guide

14 Flash Lite Global Functions
eval ()
Availability
Flash Lite 1.0.
Usage
eval(expression)
Operands
expression A string containing the name of a variable, property, object, or movie clip
to retrieve.
Description
Function; accesses variables, properties, objects, or movie clips by name. If expression is a
variable or a property, the value of the variable or property is returned. If
expression is an
object or movie clip, a reference to the object or movie clip is returned. If the element named
in
expression cannot be found, undefined is returned.
You can use
eval() to simulate arrays, or to dynamically set and retrieve the value of
a variable.
Example
The following example uses eval() to determine the value of the expression "piece" + x.
Because the result is a variable name,
piece3, eval() returns the value of the variable and
assigns it to
y:
piece3 = "dangerous";
x = 3;
y = eval("piece" add x);
trace(y);// Output: dangerous.
The following example demonstrates how an array could be simulated:
name1 = "mike";
name2 = "debbie";
name3 = "logan";
for(i = 1; i <= 3; i++) {
trace (eval("name" add i));// Output: mike, debbie, logan
}