Hi, I've encountered an curious problem while trying to use some objects through JSNI in GWT. Let's say we have javscript file with the function defined:

test.js:

function test(arg){
  var type = typeof(arg);
  if (arg instanceof Array)
    alert('Array');
  if (arg instanceof Object)
    alert('Object');
  if (arg instanceof String)
    alert('String');
}

And the we want to call this function user JSNI:

public static native void testx()/ *-{
  $wnd.test( new Array(1, 2, 3) );
  $wnd.test( [ 1, 2, 3 ] );
  $wnd.test( {val:1} );
  $wnd.test( "Some text" );
}-*/;

The questions are:

• why instanceof instructions will always return false?
• why typeof will always return "object" ?
• how to pass these objects so that they were recognized properly?