How to return all array values in alert() message /w AE script?!

[Fynnay]

Here's my code:

{
var selectedItem = app.project.activeItem;
var thisProj = app.project;
var layerList = new Array();
var compList = new Array();

function listLayers(compNum){
  for(i=1;i<=compNum.numLayers;i++){
  layerList.push(compNum.layer(i).name);
  }
}

function listComps(){
  for(i=1;i<=thisProj.numItems;i++){
        if(thisProj.item(i) instanceof CompItem){
        compList.push(thisProj.item(i).name);
        if(thisProj.item(i).numLayers>0){
        listLayers(thisProj.item(i));
        }
        }
  }
}

listComps();
alert("here's a list of all comp names:" + compList);
}

When I run it with ExtendScript Tool inside AE, the alert() causes this Error message:

invalid numeric result (divide by zero?)

It works fine if I only write out one of the items in the array. E.g.:

alert("blablabla"+complist[1];

Or if I leave out the '+'.

How can I write out the array or even multiple arrays in the same alert() and adding text in between?

Thanks in advance,

Fynn

[Dan Ebberts · Accepted solution]

Try it this way:

alert("here's a list of all comp names:" + compList.toString());

Dan

[Fynnay]

thank you for being so quick and sorry for taking so long.

and yup - that did the trick. thanks a lot!