ActionScript 2.0 Language Reference - Adobe Help and Support

toString (String.toString method)
public toString() : String
Returns an object's properties as strings regardless of whether the properties are strings.
Availability: ActionScript 1.0; Flash Player 5
Returns
String - The string.
Example
The following example outputs an uppercase string that lists all of an object's properties,
regardless of whether the properties are strings:
var employee:Object = new Object();
employee.name = "bob";
employee.salary = 60000;
employee.id = 284759021;
var employeeData:String = new String();
for (prop in employee)
{
employeeData += employee[prop].toString().toUpperCase() + " ";
}
trace(employeeData);
If the toString() method were not included in this code, and the line in the for loop used
employee[prop].toUpperCase(), the output would be "undefined undefined BOB".
Including the toString() method produces the desired output: "284759021 60000 BOB".
toUpperCase (String.toUpperCase method)
public toUpperCase() : String
Returns a copy of this string, with all lowercase characters converted to uppercase. The
original string is unmodified.
This method converts all characters (not simply a-z) for which Unicode uppercase equivalents
existThese case mappings are defined in the UnicodeData.txt file and the SpecialCasings.txt
file, as defined in the Unicode Character Database specification.
Availability: ActionScript 1.0; Flash Player 5
Returns
String - A string.
1158 ActionScript classes