They missed out the context code:
trait DoW { def length: FiniteDuration } object Monday extends DoW { override def length = 24.hours } ... implicit def toDoW(s: String): DoW = s match { case "Monday" => Monday ... } var day: DoW = _(Duration formatting and language identification are left as an exercise for the reader)
Upvote for using Scala.
Implicit was too much of a give away wasn’t it?
I’ve literally seen code that does something awfully similar. But you could have used an Enumeration.
Fuck, I think you just gave me an idea for an issue in my code that has bugged me for days.
I could’ve used a lot of things, but I’m on my phone and I wanted fewer characters to render it, whilst being sure it would work without having to run it.
Also, I am pleased to have maybe helped. Perhaps we can be friends, you and I. Perhaps not. Idk, maybe you punch dogs, why would you do that? Seems mean.
Have you ever just, like, edited a comment? How do people know when you did it? I guess if I were writing a thing to check it I’d use a registry of timestamps and checksums… So, like, ok, you can track, but why, how does it look?
Anyway sorry I had some drinks between now and first post, goodnight
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Works even better in Ruby, as the code as given is valid, you just need to monkey patch
length:#!/usr/bin/env ruby module DayLength def length if ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"].include? self "24 hours" else super end end end class String prepend DayLength end day = "Monday" x = day.length print(x)Code as given can be made valid in scala I believe. My starter was based on that assumption. I think raku can do it too, but you would probably have to
\x = $to make it work…Edit: misread your comment slightly, CBA to change mine now. It is what it is
I think this is a good question and answer in the sense that it reveals a fundamental misunderstanding on the part of the student - exactly what you hope an exam would do! (Except for how this seems to combine javascript’s .length and python’s print statement - maybe there is a language like this though - or ‘print’ was a javascript function defined elsewhere).
This reminds me once of when I was a TA in a computer science course in the computer lab. Students were working on a “connect 4” game - drop a token in a column, try to connect 4. A student asked me, while writing the drop function, if he would have to write code to ensure that the token “fell” to bottom of the board, or if the computer would understand what it was trying to do. Excellent question! Because the question connects to a huge misunderstanding that the answer has a chance to correct.
Teaching complete “clean slates” is a great way to re-evaluate your understanding.
I’ve had to teach a few apprentices and while they were perfectly reasonable and bright people, they had absolutely no idea, how computers worked internally. It’s really hard to put yourself in the shoes of such persons if it’s been too long since you were at this point of ignorance.
For reference the “language” used in the exam would probably be Exam Reference Language (OCR exam board specifically, which I believe this question is from) which is just fancier pseudocode.
To add on to exam reference languages, this is valid ruby
The answer is 6. It’s 6 characters long.
Not really, no. That would be the answer if x= len(day). The code in the image would just throw an error.
Yea, it’s pseudo code.
“Monday”.length is working JavaScript and does equal 6. No print command afaik though.
function print(str) { console.log(str) }FTFY
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You don’t need terminating semicolons in JavaScript. They’re added in if missing. It can actually cause a few bugs around returns.
The amount of people nitpicking about the brand of pseudocode or arguing the question is tricky reminds me of some coworkers, and not the good kind.
If you belong to the above category, try to learn some new programming language / read about some algorithm descriptions (not implementation) and go out take some sun. The question is super intuitive if you’re not stuck to a single paradigm or language.
Exactly. It’s pseudo code. It’s meant to be universally understandable, not language specific.
i’m of the belief that pseudocode should be real code that actually runs. I.E. something like bash. A scripting language.
Trick question?
attribute error
Poor question more likely
I am currently looking for job opportunity and amount of gotcha type question i see in OA is just something else.
I can’t imagine that’s any fun to deal with.
“You should have known what the intent of the question was. Management won’t know or care about the internals of your code as long as it meets requirements. You have failed this test.”
Or
“You should know that you’re calling a function with invalid parameters. Where did you get your CS degree from again?”
“You should have known what the intent of the question was. Management won’t know or care about the internals of your code as long as it meets requirements. You have failed this test.”
“You should know that you’re calling a function with invalid parameters. Where did you get your CS degree from again?”
sigh you can have your ransom, just remove the cameras.
Good thing this only uses ASCii characters, else you get into some fun discussions about UTF encoding
Are they using a red pen to write the checkmarks for correct answers to make it confusing but logical at least?
Grading in red is generally avoided, nowadays. Red is closely associated with failure/danger/bad, and feedback should generally be constructive to help students learn and grow.
I usually like to grade in a bright colour that students are unlikely to pick: purple, green, pink, orange, or maybe light blue (if most students are working in pencil). Brown is poo. Black and dark blue are too common. Yellow is illegible. Red is aggressive.
Anyway, I’m guessing they just graded everything in green. The only time I’ve ever graded in more than one colour was when I needed to subgrade different categories of grades, like thinking/communication/knowledge/application. In that case, choosing a consistent colour for each category makes it easier to score.
Nah, just using one of those handy pens with blue, black & 2 red ink. ;)
86400000The future is not yet young man.
hours = 0.25There. I fixed it! :)
It is indeed wrong. The correct answer would be 24.
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