SO escaped RegExp

/**
 * Copyright pleclech ( http://wonderfl.net/user/pleclech )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/2obT
 */

package {
    import flash.utils.Dictionary;
    import flash.events.Event;
    import flash.utils.setTimeout;
    import com.bit101.components.TextArea
    
    public class FlashTest extends TextArea {
        public namespace foo;
        foo var bar:String='baz';
        public function FlashTest() {
            width=400
            height=400
            setTimeout(doTest, 500)                        
        }
        public function doTest():void {
            var re1:RegExp = /\/\*[\s\S]*?\*\//gm;
            trace("raw", re1);
            trace(re1.exec("hello /*world*/ what's up"));
            trace();
            var re2:RegExp=new RegExp("/\\*[\\s\\S]*?\\*/", "gm");
            trace("string", re2);
            trace(re2.exec("hello /*world*/ what's up"));
        }
        public function trace(...args):void {
            text=text+args.join(", ")+"\n"
        }
    }
}