multiple artboards for multiples vectors arts ?

here is a more complete script

this will deal with items not in groups.

will cancel if no docs open

will alert and exit if final artboard count exceeds 100.

will remove any existing artboards

will keep global space cleaner as it is bundled in a function

function make_artboards(){
    // written by Qwertyfly
    // this may not work as expected if art contains Clipping paths
    if(app.documents.length==0){return;}
    var doc = app.activeDocument;
    var grps = doc.pageItems;
    var abs = doc.artboards;
    var c = 0;
    for(var i=0; i<grps.length; i++){
        if(grps.parent.typename == "Layer"){

            c++
        }
    }
    if(c<=100){
        for(var i=1; i<abs.length; i++){
            abs.remove();

        }
        for(var i=0; i<grps.length; i++){
            if(grps.parent.typename == "Layer"){

                //this one needs an artboard
                var box = grps.visibleBounds;

                // this line is just to give the artboard some white space around the art
                box[0] = box[0]-10; box[1] = box[1]+10; box[2] = box[2]+10; box[3] = box[3]-10;
                var AB = doc.artboards.add(box);
                if(!i){abs[0].remove();}
            }
        }
    }else{
        alert(c + " is too many items, max of 100 artboards per document");
    }
}
make_artboards();