The post contains a solution for a case where you need to attach a Library symbol and you have to pass that class name as a string to the function.
The approach followed here is by using the getDefinitionByName utility which interprets the string and convert it into a Class. Then you can use a new syntax with that particular class. Following is a code for the same solution and you can download the source files from here. The “testMC” here is a movieClip in library with the className as testMC and BaseClass as flash.display.MovieClip
import flash.utils.getDefinitionByName;
function addMovieFromLibrary(mcIName:String){
var tMC:Class = getDefinitionByName(mcIName) as Class;
var newMc:MovieClip = new tMC() as MovieClip;
addChild(newMc);
}
