Comments on: Another JavaScript quiz

By: Dan Beam

Dan Beam — Mon, 13 Dec 2010 01:11:05 +0000

I’m not quite sure whether this is more or less useful than Kangax or Dmitry Baranovskiy’s quizzes, haha, but it was fun either way.

15/25 because I didn’t read the directions
17/25 after I did
25/25 after I used the WebKit console,

By: Sumon

Sumon — Fri, 08 Oct 2010 03:46:08 +0000

Wow @ This is really awesome @

By: Dmitry A. Soshnikov

Dmitry A. Soshnikov — Thu, 19 Aug 2010 15:19:34 +0000

Good quiz Hard enough.

You got 24/25 correct. Incorrect: #25 Why did I answer “foo” instead of “f,o,o”? Hm…

P.S.: first I had

You got 22/25 correct. Incorrect: #10, #23, #25

because didn’t read disclamer carefully and wrote SyntaxError instead of ERROR. So, I think I answer #10, #23 correctly.

Dmitry.

By: Riccardo De Agostini

Riccardo De Agostini — Thu, 03 Jun 2010 12:32:20 +0000

You got 20/25 correct. Incorrect: #3, #6, #10, #12, #23 #3: I can't freakin' believe I got this one wrong! Totally my fault. #6: This one is debatable IMHO. I can't wait to read the rationale behind it. #10: This one is a valid expression, but not a valid statement; I answered with the result of {a: 1, b: 2}[["b"]] as an expression (2) so either the question was not exceedingly clear, or... oh well, after failing #3 I'm not sure of anything any longer. #12: This one is a valid statement, resulting in 2, but also a valid Object literal... oh wait, there's no such thing as an Object literal in the standard (plus eval'ing #12 yields 2 as well) so... my fault, again. #23: I wrote "SybtaxError" as an answer. LOL! That makes #23 my 21st correct answer, typos apart, I suppose.

By: Vikash Bhardwaj

Vikash Bhardwaj — Fri, 21 May 2010 04:54:39 +0000

You got 19/25 correct. Incorrect: #10, #11, #13, #17, #18, #20.

By: Damian Wielgosik

Damian Wielgosik — Mon, 10 May 2010 23:52:21 +0000

James: try alert([0]). I was just confused by the context of running this code.

By: James

James — Thu, 29 Apr 2010 13:54:31 +0000

Thanks for having a go, everyone!

Damian (and qFox) seems to have covered all of the answers! Thanks.

you can completely ignore it and focus on [0]. E.g. [0].toString() gives “0″. James actually has taken “[0]” as a correct answer probably suggested by the returned value in Firebug. But IMHO it should be “0″.

Why? [0] returns [0] … why do we need to toString() it?

By: Fabrizio

Fabrizio — Thu, 29 Apr 2010 08:05:15 +0000

I enjoy very much your blog … But this morning it was to hard and to much interesting to answer your javascript Quizz. Please, if you can give more details for the answers ?

You got 8/25 correct.

Thanks for all

By: Deborah

Deborah — Wed, 28 Apr 2010 17:45:06 +0000

You got 15/25 correct. Incorrect: #2, #6, #10, #11, #14, #17, #20, #22, #24, #25

By: Tan Shiaw Uen

Tan Shiaw Uen — Wed, 28 Apr 2010 05:02:56 +0000

You got 7/25 correct. Incorrect: #1, #2, #3, #4, #6, #7, #10, #11, #13, #14, #16, #17, #20, #21, #22, #23, #24, #25

My result sucks =X