var a = (function() {

         return typeof arguments;

      })();

      alert(a); //Object

         var b = (function(x) {

             delete x;

             return x;

         })();

         alert(b); //undefined

     //**********************

     var f = function g() {

         return 23;

         typeof g();

     }

     alert(f); //function。。。。

     //********************************

     var y=1, x = y = typeof x;

     x;

     alert(x);//undefined

     alert(x = y = typeof x);//string

     //********************************

     var g = (function f(f) {

         return typeof f();

     })(function() {

         return 1;

     });

     alert(g); //number

     //**************************************

     var foo = {

         bar: function() {

             return this.baz;},

             baz: 1

     };

     var g = (function() {

         return typeof arguments[0]();

     })(foo.bar);

     alert(g); //undefined

     //****************

   var foo = {

     bar: function(){ return this.baz; },

     baz: 1

   }

   alert(typeof (f = foo.bar)());

     //*********************************************

   var f = (function f(){ return "1"; }, function g(){ return 2; })();

   alert(typeof f); //number

   var x = 1;

   if (function f(){}) {

     x += typeof f;

     alert(x);

   }

   alert(x); //1number

   //alert(function g() {});

     //****************************************

     function f() {

         return f;

     }

     alert(new f() instanceof f); //false

     //*****************************************

     var g = (function f(){

     function f(){ return 1; }

     return f();

     function f(){ return 2; }

   })();

   alert(g); //

   //********************************************

   var k = (function(foo){

     return typeof foo.bar;

   })({ foo: { bar: 1 } });

   alert(k); //undefined

     //******************************************

   var x = [typeof x, typeof y][1];

     alert(typeof typeof typeof x); //string

    //******************************************

      with (function(x, undefined){})

      alert(length); //

       */

       var j = (function(x){

     delete x;

     return x;

   })(1);

   alert(j); //