Auto create Artboard

OK, it appears that there is no DOM code for artboards and that it is all AM based, is that right?

So I had a bit of a play for giggles. Assuming that the goal is to create a new artboard at the existing document canvas size, rather than an iPhone size or some other preset or custom value...

// Create New Artboard at Canvas Dimensions
#target photoshop
var savedRuler = app.preferences.rulerUnits;
app.preferences.rulerUnits = Units.PIXELS;
var aD = app.activeDocument;
var dW = aD.width
var dH = aD.height
// New artboard width converted to a float
var abWidth = dW.toString().replace( ' px', '.000000' );
// New artboard height converted to a float
var abHeight = dH.toString().replace( ' px', '.000000' );
// More info below:
// https://forums.adobe.com/thread/1867670
// https://forums.adobe.com/message/7646958#7646958
// ScriptingListener/AM code tidied up via the Clean SL script
make();
function make() {
  var c2t = function (s) {
  return app.charIDToTypeID(s);
  };
  var s2t = function (s) {
  return app.stringIDToTypeID(s);
  };
  var descriptor = new ActionDescriptor();
  var descriptor2 = new ActionDescriptor();
  var reference = new ActionReference();
  reference.putClass( s2t( "artboardSection" ));
  descriptor.putReference( c2t( "null" ), reference );
  // descriptor.putInteger( s2t( "layerSectionStart" ), 5 );
  // descriptor.putInteger( s2t( "layerSectionEnd" ), 6 );
  // Artboard name
  descriptor.putString( s2t( "name" ), "Artboard 1" );
  descriptor2.putDouble( s2t( "top" ), 0.000000 );
  descriptor2.putDouble( s2t( "left" ), 0.000000 );
  // Replace recorded artboard height for canvas height
  descriptor2.putDouble( s2t( "bottom" ), abHeight );
  // Replace recorded artboard width with canvas width
  descriptor2.putDouble( s2t( "right" ), abWidth );
  descriptor.putObject( s2t( "artboardRect" ), s2t( "classFloatRect" ), descriptor2 );
  executeAction( s2t( "make" ), descriptor, DialogModes.NO );
  app.preferences.rulerUnits = savedRuler;
}