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  3. Most head-slapping feature in a language

Most head-slapping feature in a language

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  • C Chris Maunder

    @Forogar and I were having a chat about unintended programming features (ahem) due to things like: Javascript's truthy: "1" == 1 is true Rexx: " Hello " == "Hello" and 0.0 == 0 is not the same as 0 == 0.0 SQL: Len("hello") = Len("hello ") I'm just wondering what other family favourites there are out there. (Edited because clearly I’ve lost track of what’s up and what’s down)

    cheers Chris Maunder

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    Christian Graus
    wrote on last edited by
    #10

    The point of === is that "1" == 1 but "1" !== 1, that is, "1" === 1 will return false, due to the differing types

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    • C Chris Maunder

      @Forogar and I were having a chat about unintended programming features (ahem) due to things like: Javascript's truthy: "1" == 1 is true Rexx: " Hello " == "Hello" and 0.0 == 0 is not the same as 0 == 0.0 SQL: Len("hello") = Len("hello ") I'm just wondering what other family favourites there are out there. (Edited because clearly I’ve lost track of what’s up and what’s down)

      cheers Chris Maunder

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      Peter_in_2780
      wrote on last edited by
      #11

      I had a colleague who insisted on occasionally writing the (perfectly valid but ummm counter-intuitive) form

      index[array]

      in C. He also worked out some multi-dimensional extensions, which my marginal brain is too small to contain. And yes, he did have a shot at the The International Obfuscated C Code Contest[^] Cheers, Peter

      Software rusts. Simon Stephenson, ca 1994. So does this signature. me, 2012

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      • C Christian Graus

        The point of === is that "1" == 1 but "1" !== 1, that is, "1" === 1 will return false, due to the differing types

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        Super Lloyd
        wrote on last edited by
        #12

        So obvious! :omg: :rolleyes: :laugh:

        A new .NET Serializer All in one Menu-Ribbon Bar Taking over the world since 1371!

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        • P Peter_in_2780

          I had a colleague who insisted on occasionally writing the (perfectly valid but ummm counter-intuitive) form

          index[array]

          in C. He also worked out some multi-dimensional extensions, which my marginal brain is too small to contain. And yes, he did have a shot at the The International Obfuscated C Code Contest[^] Cheers, Peter

          Software rusts. Simon Stephenson, ca 1994. So does this signature. me, 2012

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          Super Lloyd
          wrote on last edited by
          #13

          What a legend! :D

          A new .NET Serializer All in one Menu-Ribbon Bar Taking over the world since 1371!

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          • S Super Lloyd

            So obvious! :omg: :rolleyes: :laugh:

            A new .NET Serializer All in one Menu-Ribbon Bar Taking over the world since 1371!

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            Christian Graus
            wrote on last edited by
            #14

            The reason programming pays well is that you need to learn how the languages work :)

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            • C Chris Maunder

              @Forogar and I were having a chat about unintended programming features (ahem) due to things like: Javascript's truthy: "1" == 1 is true Rexx: " Hello " == "Hello" and 0.0 == 0 is not the same as 0 == 0.0 SQL: Len("hello") = Len("hello ") I'm just wondering what other family favourites there are out there. (Edited because clearly I’ve lost track of what’s up and what’s down)

              cheers Chris Maunder

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              Christian Graus
              wrote on last edited by
              #15

              I remember being frustrated by the fact C# 1.0 had a default container called ArrayList. Is it an Array, or a List? These are very different things. Is it a fancy container that somehow has worked out how to get the benefits of both? The documentation never said.

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              • C Chris Maunder

                @Forogar and I were having a chat about unintended programming features (ahem) due to things like: Javascript's truthy: "1" == 1 is true Rexx: " Hello " == "Hello" and 0.0 == 0 is not the same as 0 == 0.0 SQL: Len("hello") = Len("hello ") I'm just wondering what other family favourites there are out there. (Edited because clearly I’ve lost track of what’s up and what’s down)

                cheers Chris Maunder

                Sander RosselS Offline
                Sander RosselS Offline
                Sander Rossel
                wrote on last edited by
                #16

                Try the Predict the Output Challenge (C#)[^]. It shows some fun C# quirks (especially part 1) with types, enumerables etc. :D

                Best, Sander sanderrossel.com Continuous Integration, Delivery, and Deployment arrgh.js - Bringing LINQ to JavaScript Object-Oriented Programming in C# Succinctly

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                • C Chris Maunder

                  @Forogar and I were having a chat about unintended programming features (ahem) due to things like: Javascript's truthy: "1" == 1 is true Rexx: " Hello " == "Hello" and 0.0 == 0 is not the same as 0 == 0.0 SQL: Len("hello") = Len("hello ") I'm just wondering what other family favourites there are out there. (Edited because clearly I’ve lost track of what’s up and what’s down)

                  cheers Chris Maunder

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                  Davyd McColl
                  wrote on last edited by
                  #17

                  I'm sure your first one should be: ``` "1" == 1 is true ``` `===` specifically takes type into account. Javascript's type co-ercion can be a win or a lose, depending on what you want. If type matters, use `===` and `!==`

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                  • C Chris Maunder

                    @Forogar and I were having a chat about unintended programming features (ahem) due to things like: Javascript's truthy: "1" == 1 is true Rexx: " Hello " == "Hello" and 0.0 == 0 is not the same as 0 == 0.0 SQL: Len("hello") = Len("hello ") I'm just wondering what other family favourites there are out there. (Edited because clearly I’ve lost track of what’s up and what’s down)

                    cheers Chris Maunder

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                    CodeWraith
                    wrote on last edited by
                    #18

                    That kind of things already existed when our ancestors began to cast logic into silicon[^]. Of course, there also were well designed CPUs[^] that had exactly 256 opcodes, with only 0x68 being reserved as prefix for future expansions of the instruction set. And of course there are the opcodes 0xE0 - 0xEF, the 'Set X Register' instruction for registers 0x0 - 0xF, short SEX. Absolutely no confusion here.

                    I have lived with several Zen masters - all of them were cats. His last invention was an evil Lasagna. It didn't kill anyone, and it actually tasted pretty good.

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                    • C Chris Maunder

                      @Forogar and I were having a chat about unintended programming features (ahem) due to things like: Javascript's truthy: "1" == 1 is true Rexx: " Hello " == "Hello" and 0.0 == 0 is not the same as 0 == 0.0 SQL: Len("hello") = Len("hello ") I'm just wondering what other family favourites there are out there. (Edited because clearly I’ve lost track of what’s up and what’s down)

                      cheers Chris Maunder

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                      Simon_Whale
                      wrote on last edited by
                      #19

                      Chris Maunder wrote:

                      SQL: Len("hello") = Len("hello ")

                      That is a fun one that I came across a while ago. for some reason SQL Server ignores the trailing spaces hence they match. LEN (Transact-SQL) - SQL Server | Microsoft Docs[^]

                      Every day, thousands of innocent plants are killed by vegetarians. Help end the violence EAT BACON

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                      • C Chris Maunder

                        @Forogar and I were having a chat about unintended programming features (ahem) due to things like: Javascript's truthy: "1" == 1 is true Rexx: " Hello " == "Hello" and 0.0 == 0 is not the same as 0 == 0.0 SQL: Len("hello") = Len("hello ") I'm just wondering what other family favourites there are out there. (Edited because clearly I’ve lost track of what’s up and what’s down)

                        cheers Chris Maunder

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                        markchagers
                        wrote on last edited by
                        #20

                        erm, typo?

                        "1" === 1 is false
                        "1" == 1 is true (truthy rather)

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                        • M MacSpudster

                          Officially, I actively choose to not slap myself becuz of a (programming) language's nuance(s). :doh:

                          The best way to improve Windows is run it on a Mac. The best way to bring a Mac to its knees is to run Windows on it. ~ my brother Jeff

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                          BryanFazekas
                          wrote on last edited by
                          #21

                          Re-read the OP. Chris didn't state he was going to slap his own head .... :laugh:

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                          • C Chris Maunder

                            @Forogar and I were having a chat about unintended programming features (ahem) due to things like: Javascript's truthy: "1" == 1 is true Rexx: " Hello " == "Hello" and 0.0 == 0 is not the same as 0 == 0.0 SQL: Len("hello") = Len("hello ") I'm just wondering what other family favourites there are out there. (Edited because clearly I’ve lost track of what’s up and what’s down)

                            cheers Chris Maunder

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                            loctrice
                            wrote on last edited by
                            #22

                            "1" === 1 is true false

                            Elephant elephant elephant, sunshine sunshine sunshine

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                            • C Chris Maunder

                              @Forogar and I were having a chat about unintended programming features (ahem) due to things like: Javascript's truthy: "1" == 1 is true Rexx: " Hello " == "Hello" and 0.0 == 0 is not the same as 0 == 0.0 SQL: Len("hello") = Len("hello ") I'm just wondering what other family favourites there are out there. (Edited because clearly I’ve lost track of what’s up and what’s down)

                              cheers Chris Maunder

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                              kalberts
                              wrote on last edited by
                              #23

                              In Fortran (at least in the old days, Fortran IV and thereabouts) has no reserved words. Spaces have no significance. So you could declare a variable named INTEGER REAL INTEGER INTEGER = 3.14 or a subroutine named FUNCTION to be invoked by CALL FUNCTION(...) The standard loop construct is the DO loop, but DO U BLEP RECISION IF is not the start of a loop. Rather, you could make a comparison with the above variable IF (IF.GT.INTEGER) ... In my student days, there was a single course teaching Fortran. We made it a habit to solve the execizes using predefined identifiers only. Sort of like OCCC, but it took far less effort to obfuscate Fortran.

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                              • C Christian Graus

                                The point of === is that "1" == 1 but "1" !== 1, that is, "1" === 1 will return false, due to the differing types

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                                realJSOP
                                wrote on last edited by
                                #24

                                This is the kind of crap you get in a weakly typed language.

                                ".45 ACP - because shooting twice is just silly" - JSOP, 2010
                                -----
                                You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
                                -----
                                When you pry the gun from my cold dead hands, be careful - the barrel will be very hot. - JSOP, 2013

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                                • C Chris Maunder

                                  @Forogar and I were having a chat about unintended programming features (ahem) due to things like: Javascript's truthy: "1" == 1 is true Rexx: " Hello " == "Hello" and 0.0 == 0 is not the same as 0 == 0.0 SQL: Len("hello") = Len("hello ") I'm just wondering what other family favourites there are out there. (Edited because clearly I’ve lost track of what’s up and what’s down)

                                  cheers Chris Maunder

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                                  Asday
                                  wrote on last edited by
                                  #25

                                  >`"1" === 1 is true` What? `is` is not a keyword in js, and `"1" === 1` evaluates as `false`. What's going on here?

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                                  • C Chris Maunder

                                    @Forogar and I were having a chat about unintended programming features (ahem) due to things like: Javascript's truthy: "1" == 1 is true Rexx: " Hello " == "Hello" and 0.0 == 0 is not the same as 0 == 0.0 SQL: Len("hello") = Len("hello ") I'm just wondering what other family favourites there are out there. (Edited because clearly I’ve lost track of what’s up and what’s down)

                                    cheers Chris Maunder

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                                    Kirk 10389821
                                    wrote on last edited by
                                    #26

                                    In the old fortran stuff: 3 = 9 And change the value of 3 to 9 (Because some nimrod decided to declare numeric constants as variables?) LMAO. But they fix everything by adding an =, so we get =, ==, ===... I am waiting to read some code:

                                    if (x ======= y) // equal on 7 planes of existence

                                    and

                                    if (x ======== y) // A fuzzy version of the above allowing for LESS Equality to be Equal, LMAO

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                                    • C Chris Maunder

                                      @Forogar and I were having a chat about unintended programming features (ahem) due to things like: Javascript's truthy: "1" == 1 is true Rexx: " Hello " == "Hello" and 0.0 == 0 is not the same as 0 == 0.0 SQL: Len("hello") = Len("hello ") I'm just wondering what other family favourites there are out there. (Edited because clearly I’ve lost track of what’s up and what’s down)

                                      cheers Chris Maunder

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                                      jfren484
                                      wrote on last edited by
                                      #27

                                      "1" === 1 is true

                                      Umm, this statement is false. Put "1" === 1 into the dev tools console and it will output false.

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                                      • M markchagers

                                        erm, typo?

                                        "1" === 1 is false
                                        "1" == 1 is true (truthy rather)

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                                        Chris Maunder
                                        wrote on last edited by
                                        #28

                                        I don’t even know anymore. I’m so confused.

                                        cheers Chris Maunder

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                                        • B BryanFazekas

                                          Re-read the OP. Chris didn't state he was going to slap his own head .... :laugh:

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                                          MacSpudster
                                          wrote on last edited by
                                          #29

                                          Y'all need to re-read my comment. Never did imply nor explicitly express Chris did or would do that. :doh:

                                          The best way to improve Windows is run it on a Mac. The best way to bring a Mac to its knees is to run Windows on it. ~ my brother Jeff

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