//var a = new Array("a", "b", "c");
//var b = new Array(1, 2, 3);
//var c = new Array(a, b);
//var d = new Array("str", 123, undefined, null, true, false);
//a.toString();
a,b,c
//b.toString();
1,2,3
//c.toString();
a,b,c,1,2,3
//d.toString();
str,123,,,true,false
