• lthlnkso@programming.dev
    link
    fedilink
    arrow-up
    148
    arrow-down
    2
    ·
    8 months ago

    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.

  • treechicken@lemmy.world
    link
    fedilink
    arrow-up
    113
    ·
    8 months ago

    It’s obviously:

    Traceback (most recent call last): File “./main.py”, line 2, in <module> AttributeError: ‘str’ object has no attribute ‘length’

  • silasmariner@programming.dev
    link
    fedilink
    arrow-up
    72
    arrow-down
    1
    ·
    edit-2
    8 months ago

    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)

    • paholg@lemm.ee
      link
      fedilink
      English
      arrow-up
      19
      ·
      8 months ago

      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)
      
      • silasmariner@programming.dev
        link
        fedilink
        arrow-up
        5
        ·
        edit-2
        8 months ago

        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

  • dragontamer@lemmy.world
    link
    fedilink
    English
    arrow-up
    43
    ·
    edit-2
    8 months ago

    Is it wrong that I’m stuck trying to figure out what language this is?

    Trying to figure out what string.length and print(var) exist in a single language… Not Java, not C# (I’m pretty sure its .Length, not length), certainly not C, C++ or Python, Pascal, Schme or Haskell or Javascript or PHP.

    • Minotaur@lemm.ee
      link
      fedilink
      arrow-up
      34
      arrow-down
      2
      ·
      8 months ago

      I’m very much guessing that this is just supposed to be a type of pseudocode given the context and vagueness of it.

      It’s a big reason why I really dont like pseudocode as instruction to people learning the basics of what programming is. It made more sense 20 years ago when programming languages were on a whole a lot more esoteric and less plain text, but now with simple languages like Python there’s simply little reason to not just write Python code or whatever.

      I took an intro to programming class in College and the single thing I got dinged on the most is “incorrect pseudocode”, which was either too formal and close to real code or too casual and close to plain English.

      It’s not a great system. We really need to get rid of it as a practice

        • 1rre@discuss.tchncs.de
          link
          fedilink
          arrow-up
          8
          arrow-down
          5
          ·
          8 months ago

          I mean once you get beyond bash-like scripts python is esoteric as fuck, adding oop to what is essentially a shell is a terrible idea

          That said, there’s plenty of languages with good syntax that is still good when you get into more complex stuff (modern C#, scala, kotlin and more)

          • nxdefiant@startrek.website
            link
            fedilink
            arrow-up
            10
            ·
            8 months ago

            The only thing esoteric about python is the bolted-on typing and anything behind a double underscore.

            So yeah, it’s there, but in front of the curtain it’s practically pseudo code.

          • Minotaur@lemm.ee
            link
            fedilink
            arrow-up
            7
            arrow-down
            1
            ·
            edit-2
            8 months ago

            I think you’re missing the forest for the trees here pretty heavily.

            Yes, Python has some goofy aspects about managing it while performing high level, in depth tasks.

            This is a post and a comment chain about pseudocode being taught to people who likely just learned what a “programming language” was several weeks ago. Essentially no one taking the GCSE knows what “bash-like scripts” even means.

      • Captain Aggravated@sh.itjust.works
        link
        fedilink
        English
        arrow-up
        4
        ·
        8 months ago

        Reminds me of 7th grade math class, chapter on estimating. Assignment was “Estimate the following values” with problems like 42+28=? or 14*3=?

        One of them was 6*7=? Which having memorized my times tables in 4th grade like they told me to, I knew off the top of my head that it’s 42. I wrote that. And it was marked wrong because I was too precise.

        • unalivejoy@lemm.ee
          link
          fedilink
          English
          arrow-up
          19
          ·
          8 months ago

          print() will print the text to a physical printer with paper and everything. Don’t confuse it with console.log and use it in a loop.

        • Downcount@lemmy.world
          link
          fedilink
          arrow-up
          9
          ·
          edit-2
          8 months ago

          It would have print if it was previously declared as function.

          Also, js is as dirty as you want it to be. Keywords are indeed not necessary for declaring variables.

          • kautau@lemmy.world
            link
            fedilink
            arrow-up
            6
            ·
            edit-2
            8 months ago

            JavaScript is the language of the assassins, with its infinitely modifiable prototypical setup

            Nothing is true

            true !== 1

            true

            true + true + true === 3

            true

            Everything is permitted

            []+[]

            ''

    • NeatNit@discuss.tchncs.de
      link
      fedilink
      arrow-up
      8
      ·
      8 months ago

      My headcanon: it’s a language that gets executed by a LLM. Whatever you write, if the LLM can make sense of it, it will execute it.

      The output may well be “24 hours”.

    • mox@lemmy.sdf.org
      link
      fedilink
      arrow-up
      8
      ·
      edit-2
      8 months ago

      That recurring puzzle is among the most interesting aspects of this community, IMHO.

      • kautau@lemmy.world
        link
        fedilink
        arrow-up
        7
        arrow-down
        1
        ·
        8 months ago

        It’s weird that people are so focused on it. It’s pseudocode, and it’s purely meant for day one comp sci students to grasp how data is stored and processed, before they are forced into writing Java, most likely

      • Skullgrid@lemmy.world
        link
        fedilink
        arrow-up
        4
        ·
        8 months ago

        Most irritating aspect of switching languages. How are switches done in this one again?

        •Searches web•

        Ah yes

    • lugal@lemmy.ml
      link
      fedilink
      arrow-up
      7
      ·
      8 months ago

      This is quite a cheap answer but maybe it’s just pseudo code. We had exercises in university about pseudo code with examples that intentionally broke all syntax systems and conventions to show that not everything has to be executable that you write down in a theoretical computer science homework

      • nxdefiant@startrek.website
        link
        fedilink
        arrow-up
        2
        arrow-down
        9
        ·
        8 months ago

        It’s a shitty question. It’s implied by the fact that “24” is wrong that the answer is “6”, the length of the string “Monday”.

        In some languages dot access on objects could give you the properties of the object type (things pertaining to a “day” object) but this would still be ambiguous since a day’s length can be measured in many different ways.

        In others, it would require you to call length as a function (.length()) or not be available at all, or require you to pass the object into another function [ length_in_seconds(day_x)]

        • Matty_r@programming.dev
          link
          fedilink
          arrow-up
          11
          ·
          8 months ago

          I think the question is fine, but we have to assume they covered this type of method prior to the exam, where .length would result in the character count of a String.

    • paholg@lemm.ee
      link
      fedilink
      English
      arrow-up
      5
      ·
      edit-2
      8 months ago

      It could be Ruby; puts is more common, but there is a print. With some silly context, the answer could even be correct:

      #!/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)
      
    • breadsmasher@lemmy.world
      link
      fedilink
      English
      arrow-up
      3
      arrow-down
      1
      ·
      edit-2
      8 months ago

      Same thoughts I had.

      1. Language which allows variable declaration as name = value without any keywords or its a variable declared outside of the example
      2. Has lowercase .length and not .len or other
      3. .length is also a property and not a method? Assuming convention .length() for method call like print(x)
        • Car@lemmy.dbzer0.com
          link
          fedilink
          arrow-up
          5
          ·
          8 months ago

          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?”

          • alexdeathway@programming.dev
            link
            fedilink
            arrow-up
            5
            ·
            edit-2
            8 months ago

            “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.

  • jlow (he/him)@beehaw.org
    link
    fedilink
    arrow-up
    15
    ·
    8 months ago

    Are they using a red pen to write the checkmarks for correct answers to make it confusing but logical at least?

    • blindsight@beehaw.org
      link
      fedilink
      arrow-up
      3
      ·
      8 months ago

      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.

  • breadsmasher@lemmy.world
    link
    fedilink
    English
    arrow-up
    8
    ·
    edit-2
    8 months ago

    does it give reference to what language this is in?

    x = string length of “Monday” => 6

    passed my gcse?

  • stoly@lemmy.world
    link
    fedilink
    arrow-up
    17
    arrow-down
    9
    ·
    8 months ago

    I wonder if day length is given separately in a table prior to the question? I’m not sure what they wanted except maybe seconds?