C3PablO

var doc = app.activeDocument;
var artboards = doc.artboards;
var artboard_count = artboards.length; // save the artboard count
var artboard_names = []; // array to hold artboards names

for (i = 0; i < artboard_count; i++) {
  artboard_names.push(artboards[i].name);
}

artboard_names.sort();