Actionscript 3.0 Using the rest( ... ) Operator for Argument Arrays

ActionScript 3.0 sports a new feature called the rest( ... ) operator. This allows us to send a comma delimeted array of arguments to our custom functions for processing. The rest operator is represented by three consecutive dots called triple dot( ... ).

Using the rest operator to send array data into functions

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function myFunction(... argArray):void {

    

    for (var i:uint = 0; i < argArray.length; i++) {

        trace(argArray[i]);

    }

    

}

myFunction("Joe", "Betty", "Suzy", "William");

Joe
Betty
Suzy
William

Using rest along with other arguments. (rest ... ) must come last.

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function myFunction(var1:String, var2:String, ... argArray):void {

    

    trace(var1 + " is first in line");

    trace(var2 + " is second in line");

    

    for (var i:uint = 0; i < argArray.length; i++) {

        trace(argArray[i]);

    }

    



}

myFunction("Joe", "Betty", "Suzy", "William");

Joe is first in line
Betty is second in line
Suzy
William

Properties of the Arguments List Array

Actionscript 3.0 Tutorials - Learn Actionscript 3.0