Some egg-sore javascript syntax features

In the knowledge of the published and JavaScript-related questions, and everyone to share, although it is a long time ago, but these questions are quite classic, inevitably people think that JavaScript is really the language of egg pain.

(function () {return typeof arguments;         })(); A. "Object" B. "Array" C. "Arguments" D. "Undefined"

Answer: A

02.

var f = function g () {return 23;        };        typeof G (); A. "number" B. "Undefined" C. "function" D. eorror

Answer: D

03.

(function (x) {delete x;        return x;        }) (1); A. 1 B. null C. undefined D. Error

Answer: A

04.

var y = 1, x = y = typeof x;        X A. 1 B. "Number" C. undefined D. "Undefined"

Answer: D

05.

(function f (f) {return typeof F ();        }) (function () {return 1;        }); A. "number" B. "Undefined" C. "function" D. Error

Answer: A

06.

var foo = {bar:function () {return this.baz;        }, baz:1};        (function () {return typeof arguments[0] ();        }) (Foo.bar); A. "Undefined" B. "Object" C. "number" D. "Function"

Answer: A

07.

var foo = {bar:function () {return this.baz;        }, baz:1};        typeof (F = foo.bar) (); A. "Undefined" B. "Object" C. "number" D. "Function"

Answer: A

08.

var F = (function f () {return "1";        }, function g () {return 2;        })();        typeof F; A. "string" B. "number" C. "function" D. "Undefined"

09.

var x = 1; if (function f () {}) {x + = typeof F;} X; A. 1 B. "1function" C. "1undefined" D. NaN

Answer: C

10.

var x = [typeof x, typeof y][1];        typeof typeof X; A. "Number" B. "string" C. "Undefined" D. "Object"

Answer: B

11.

(function (foo) {return typeof foo.bar;        }) ({foo: {bar:1}}); A, "undefined" B, "Object" C, "number" D, Error

Answer: A

12.

(Function f ()  {            function  f ()  {                 return 1;            }             return f ();             function f ()  {                 return 2;             }        }) ();         a, 1        b, 2         c, error  (e.g.  "too much recursion")          d, undefined

Answer: B

13.

function f () {return F;        } new F () instanceof F; A, True B, False

Answer: B

14.

With (function (x, undefined) {}) length; A, 1 B, 2 C, undefined D, Error

Answer: B

15.

Which of the following statements produces a run error: () A.var obj = ();        B.var obj = [];        C.var obj = {}; D.var obj =//;

an answer; A

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Some egg-sore javascript syntax features