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Modern Programming

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  • capuccino@lemmy.worldC [email protected]

    I love something = condition and result1 or result2 in lua

    R This user is from outside of this forum
    R This user is from outside of this forum
    [email protected]
    wrote on last edited by [email protected]
    #8

    Python does that, too.

    https://docs.python.org/3/library/stdtypes.html#boolean-operations-and-or-not

    satyrsack@lemmy.sdf.orgS 1 Reply Last reply
    7
    • G [email protected]

      That's way too non-convoluted enough

      entropicdrift@lemmy.sdf.orgE This user is from outside of this forum
      entropicdrift@lemmy.sdf.orgE This user is from outside of this forum
      [email protected]
      wrote on last edited by
      #9

      Python is kinda like that in general, unless you try to make it read like ass

      C W 2 Replies Last reply
      14
      • maven@lemmy.zipM [email protected]
        This post did not contain any content.
        P This user is from outside of this forum
        P This user is from outside of this forum
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        wrote on last edited by
        #10

        Yeah... I played that "serial killer or programming language inventor" game.

        The only one I was completely in disagreement with was the inventor of Python. He's definitely a mass-murderer

        C 1 Reply Last reply
        9
        • maven@lemmy.zipM [email protected]
          This post did not contain any content.
          kn0wmad1c@programming.devK This user is from outside of this forum
          kn0wmad1c@programming.devK This user is from outside of this forum
          [email protected]
          wrote on last edited by [email protected]
          #11

          num % 2 isn't a boolean result in any of these languages, so I feel like it would always output "odd"

          Edit: 0 is false, everything else is true.

          maven@lemmy.zipM moomoomoo309@programming.devM C K M 6 Replies Last reply
          2
          • entropicdrift@lemmy.sdf.orgE [email protected]

            Python is kinda like that in general, unless you try to make it read like ass

            C This user is from outside of this forum
            C This user is from outside of this forum
            [email protected]
            wrote on last edited by
            #12

            Clearly an inferior language. /s

            1 Reply Last reply
            3
            • kn0wmad1c@programming.devK [email protected]

              num % 2 isn't a boolean result in any of these languages, so I feel like it would always output "odd"

              Edit: 0 is false, everything else is true.

              maven@lemmy.zipM This user is from outside of this forum
              maven@lemmy.zipM This user is from outside of this forum
              [email protected]
              wrote on last edited by
              #13

              In JS 0 is the same as False

              L 1 Reply Last reply
              2
              • kn0wmad1c@programming.devK [email protected]

                num % 2 isn't a boolean result in any of these languages, so I feel like it would always output "odd"

                Edit: 0 is false, everything else is true.

                moomoomoo309@programming.devM This user is from outside of this forum
                moomoomoo309@programming.devM This user is from outside of this forum
                [email protected]
                wrote on last edited by
                #14

                All of those languages will convert numbers into booleans, 0 is false, all other numbers are true.

                kn0wmad1c@programming.devK 3 Replies Last reply
                7
                • kn0wmad1c@programming.devK [email protected]

                  num % 2 isn't a boolean result in any of these languages, so I feel like it would always output "odd"

                  Edit: 0 is false, everything else is true.

                  C This user is from outside of this forum
                  C This user is from outside of this forum
                  [email protected]
                  wrote on last edited by
                  #15

                  The joys of dynamic typing.

                  1 Reply Last reply
                  1
                  • moomoomoo309@programming.devM [email protected]

                    All of those languages will convert numbers into booleans, 0 is false, all other numbers are true.

                    kn0wmad1c@programming.devK This user is from outside of this forum
                    kn0wmad1c@programming.devK This user is from outside of this forum
                    [email protected]
                    wrote on last edited by
                    #16

                    Ah, that makes sense.

                    1 Reply Last reply
                    0
                    • kn0wmad1c@programming.devK [email protected]

                      num % 2 isn't a boolean result in any of these languages, so I feel like it would always output "odd"

                      Edit: 0 is false, everything else is true.

                      K This user is from outside of this forum
                      K This user is from outside of this forum
                      [email protected]
                      wrote on last edited by
                      #17

                      0 is false in C, Python, and JS. It should work

                      1 Reply Last reply
                      6
                      • kn0wmad1c@programming.devK [email protected]

                        num % 2 isn't a boolean result in any of these languages, so I feel like it would always output "odd"

                        Edit: 0 is false, everything else is true.

                        M This user is from outside of this forum
                        M This user is from outside of this forum
                        [email protected]
                        wrote on last edited by
                        #18

                        You'd be surprised.

                        But seriously, numbers can be used as booleans in an impressive number of languages. Including machine code for almost every machine out there.

                        1 Reply Last reply
                        1
                        • entropicdrift@lemmy.sdf.orgE [email protected]
                          print("odd" if num % 2 else "even")
                          

                          That's the native python version, for those curious

                          K This user is from outside of this forum
                          K This user is from outside of this forum
                          [email protected]
                          wrote on last edited by
                          #19

                          Why is the return first?

                          J B 2 Replies Last reply
                          7
                          • moomoomoo309@programming.devM [email protected]

                            All of those languages will convert numbers into booleans, 0 is false, all other numbers are true.

                            kn0wmad1c@programming.devK This user is from outside of this forum
                            kn0wmad1c@programming.devK This user is from outside of this forum
                            [email protected]
                            wrote on last edited by
                            #20

                            That makes sense. However, num % 2 equaling 0 would mean it's even, and not "odd" like the ternary operator is outputting, yeah?

                            1 Reply Last reply
                            0
                            • moomoomoo309@programming.devM [email protected]

                              All of those languages will convert numbers into booleans, 0 is false, all other numbers are true.

                              kn0wmad1c@programming.devK This user is from outside of this forum
                              kn0wmad1c@programming.devK This user is from outside of this forum
                              [email protected]
                              wrote on last edited by
                              #21

                              Ah that makes sense.

                              satyrsack@lemmy.sdf.orgS 1 Reply Last reply
                              2
                              • kn0wmad1c@programming.devK [email protected]

                                num % 2 isn't a boolean result in any of these languages, so I feel like it would always output "odd"

                                Edit: 0 is false, everything else is true.

                                sleeplessone@lemmy.mlS This user is from outside of this forum
                                sleeplessone@lemmy.mlS This user is from outside of this forum
                                [email protected]
                                wrote on last edited by
                                #22

                                In JS at least, there's a concept of truthiness and falsiness. 0, undefined, null, and a few other non-boolean values are treated as false if used in conditionals and logical operations, while every other value is treated as true. I'm pretty sure python has something similar.

                                H 1 Reply Last reply
                                4
                                • K [email protected]

                                  Why is the return first?

                                  J This user is from outside of this forum
                                  J This user is from outside of this forum
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                                  wrote on last edited by
                                  #23

                                  I think the idea is it reads more naturally, so you can read it like this return A if statement is true else return B

                                  N 1 Reply Last reply
                                  16
                                  • entropicdrift@lemmy.sdf.orgE [email protected]
                                    print("odd" if num % 2 else "even")
                                    

                                    That's the native python version, for those curious

                                    D This user is from outside of this forum
                                    D This user is from outside of this forum
                                    [email protected]
                                    wrote on last edited by
                                    #24

                                    The ternary syntax is really my only real gripe with python design -- putting the conditional BETWEEN the true and false values feels so very messy to me.

                                    rbos@lemmy.caR B idunnololz@lemmy.worldI 3 Replies Last reply
                                    83
                                    • K [email protected]

                                      Why is the return first?

                                      B This user is from outside of this forum
                                      B This user is from outside of this forum
                                      [email protected]
                                      wrote on last edited by [email protected]
                                      #25

                                      Edit... I reread your comment and realized that python does it differently and that everything I typed was irrelevant... I'm still gonna leave it if anyone is interested in ternary expressions, but I suppose the answer to your question is, that's just how python does it.

                                      That's how ternary operators are designed to work. In essence, if you're looking to do a single line if/then, you can directly assign a variable from the result of a ternary expression.

                                      As an example, I was scripting something earlier where there may or may not be a value returned from a function, but I still had to do something with that return value later. For this thing, I was using JavaScript.

                                      I ended up with:

                                      return platform == "name"  ? "Option 1" : "Option 2"
                                      

                                      If I were to write that out in a typical if/then it would be:

                                      if (platform == "name") {
                                          return "option 1"
                                      } else {
                                          return "option 2"
                                      }
                                      
                                      

                                      A ternary starts with a boolean expression, then the if true value, else the false value. That's returned to either a variable or if in a function like my example, to the object calling the function. It's just a way to write less code that in many cases is easier to read.

                                      1 Reply Last reply
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                                      • P [email protected]

                                        Yeah... I played that "serial killer or programming language inventor" game.

                                        The only one I was completely in disagreement with was the inventor of Python. He's definitely a mass-murderer

                                        C This user is from outside of this forum
                                        C This user is from outside of this forum
                                        [email protected]
                                        wrote on last edited by [email protected]
                                        #26

                                        Are you sure it isn't just that he's Dutch?

                                        1 Reply Last reply
                                        4
                                        • D [email protected]

                                          The ternary syntax is really my only real gripe with python design -- putting the conditional BETWEEN the true and false values feels so very messy to me.

                                          rbos@lemmy.caR This user is from outside of this forum
                                          rbos@lemmy.caR This user is from outside of this forum
                                          [email protected]
                                          wrote on last edited by
                                          #27

                                          It's kinda natural to me having used Perl a lot.

                                          S L 2 Replies Last reply
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