var template:String = "Error {errorId}:  The file {filename} could not be read.";
     var params:Object = new Object();
     params.errorId = 42;
     params.filename = "/Users/alice/vacation.jpg";
     var message:String = FormatMessage.formatString(template, params);
     // message="Error 42:  The file /Users/alice/vacation.jpg could not be read."
     

     var template:String = "Error {errorId}:  The file {filename} could not be read.";
     var params:Object =
             {
                 errorId:  42,
                 filename: "/Users/alice/vacation.jpg"
             };
     var message:String = FormatMessage.formatString(template, params);
     // message="Error 42:  The file /Users/alice/vacation.jpg could not be read."
     

     var template:String = "Error {0}:  The file {1} could not be read.";
     var params:Array =
             [
                 42,
                 "/Users/alice/vacation.jpg"
             ];
     var message:String = FormatMessage.formatString(template, params);
     // message="Error 42:  The file /Users/alice/vacation.jpg could not be read."
     

     var template:String = "Error {errorId}:  The file {filename} could not be read.";
     var params:Object =
             {
                 errorId:  42,
             };
     var message:String = FormatMessage.formatString(template, params);
     // message="Error 42:  The file  could not be read."
     

     var template:String = "{one}{two}{three}{four}{five}";
     var params:Object =
             {
                 one: "{five}",
                 two: "{four}",
                 three: "{three}",
                 four: "{two}",
                 five: "{one}"
             };
     var message:String = FormatMessage.formatString(template, params);
     // message="{five}{four}{three}{two}{one}"
     

     var template:String = "The {{filename} parameter is {filename}.";
     var message:String = FormatMessage.formatString(template, {filename: "/Users/alice/vacation.jpg"});
     // message="The {filename} parameter is /Users/alice/vacation.jpg."