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  3. What is type of foo, if foo != foo?

What is type of foo, if foo != foo?

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  • P Palash Mondal_

    yup, the NaN stuff is amazing, but not sure about 'how a number is a word and how a word is a string' :confused:

    A Offline
    A Offline
    Afzaal Ahmad Zeeshan
    wrote on last edited by
    #11

    Great that you already know the NaN is a number. Now, if you have ever programmed in low-level, you would know that a word is a size given to a data, 1 byte, 2 byte etc. So the size of the register in CPU is a word; pre-defined size, doesn't matter 8-bit 16-bit or what. The size is number, thus, a number is word. :-) Now a word in our language, for example, "Hello", cannot be represented as a word in computer which needs some other type, which is string (array of characters), thus a word is a string. From here comes the metaphor, In programming, a number is a word and a word is a string. :cool:

    The shit I complain about It's like there ain't a cloud in the sky and it's raining out - Eminem ~! Firewall !~

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    0
    • A Afzaal Ahmad Zeeshan

      Great that you already know the NaN is a number. Now, if you have ever programmed in low-level, you would know that a word is a size given to a data, 1 byte, 2 byte etc. So the size of the register in CPU is a word; pre-defined size, doesn't matter 8-bit 16-bit or what. The size is number, thus, a number is word. :-) Now a word in our language, for example, "Hello", cannot be represented as a word in computer which needs some other type, which is string (array of characters), thus a word is a string. From here comes the metaphor, In programming, a number is a word and a word is a string. :cool:

      The shit I complain about It's like there ain't a cloud in the sky and it's raining out - Eminem ~! Firewall !~

      P Offline
      P Offline
      Palash Mondal_
      wrote on last edited by
      #12

      Do you have any reference documentations for it? I want to learn about it more in-depth. Thanks!

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      • A Afzaal Ahmad Zeeshan

        Isn't it amazing, how NaN is a number, how a number is a word and how a word is a string. :doh:

        The shit I complain about It's like there ain't a cloud in the sky and it's raining out - Eminem ~! Firewall !~

        Sander RosselS Offline
        Sander RosselS Offline
        Sander Rossel
        wrote on last edited by
        #13

        Afzaal Ahmad Zeeshan wrote:

        Isn't it amazing, how NaN is a number

        Yes! Especially since NaN is short for "Not a Number"! X| My whole life is a lie!

        Visit my blog at Sander's bits - Writing the code you need. Or read my articles at my CodeProject profile.

        Simplicity is prerequisite for reliability. — Edsger W. Dijkstra

        Regards, Sander

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        • P Palash Mondal_

          Do you have any reference documentations for it? I want to learn about it more in-depth. Thanks!

          A Offline
          A Offline
          Afzaal Ahmad Zeeshan
          wrote on last edited by
          #14

          Sure, read about Word in computer architecture[^] and the string data type[^]. One thing you should know is that there is no actual string type, it is just an array of characters. :-) Good luck for more in-depths.

          The shit I complain about It's like there ain't a cloud in the sky and it's raining out - Eminem ~! Firewall !~

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          • Sander RosselS Sander Rossel

            Afzaal Ahmad Zeeshan wrote:

            Isn't it amazing, how NaN is a number

            Yes! Especially since NaN is short for "Not a Number"! X| My whole life is a lie!

            Visit my blog at Sander's bits - Writing the code you need. Or read my articles at my CodeProject profile.

            Simplicity is prerequisite for reliability. — Edsger W. Dijkstra

            Regards, Sander

            A Offline
            A Offline
            Afzaal Ahmad Zeeshan
            wrote on last edited by
            #15

            Clarified, but how is a number a word (the size of register) and how is a word actually a string (the data type)? :laugh: Plus, short form of your life is a lie (removing the F). :cool:

            The shit I complain about It's like there ain't a cloud in the sky and it's raining out - Eminem ~! Firewall !~

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            • A Afzaal Ahmad Zeeshan

              Sure, read about Word in computer architecture[^] and the string data type[^]. One thing you should know is that there is no actual string type, it is just an array of characters. :-) Good luck for more in-depths.

              The shit I complain about It's like there ain't a cloud in the sky and it's raining out - Eminem ~! Firewall !~

              P Offline
              P Offline
              Palash Mondal_
              wrote on last edited by
              #16

              Thanks for it. Have a nice day ahead! :)

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              • P Palash Mondal_

                Recently had been debugging using the browser console, when I found this answer. Can you guess the type of foo here? Is it a string, function or else?

                J Offline
                J Offline
                Joan M
                wrote on last edited by
                #17

                Any after overloading operators...

                [www.tamautomation.com] | Robots, CNC and PLC machines for grinding and polishing. [YouTube channel]

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                • M Manfred Rudolf Bihy

                  By definition undefined should be unequal to undefined. Is it? Cheers!

                  "I had the right to remain silent, but I didn't have the ability!"

                  Ron White, Comedian

                  L Offline
                  L Offline
                  Lost User
                  wrote on last edited by
                  #18

                  No, undefined compared with anything (anything includes also again undefined) is "an error" and therefore neither equal nor unequal... it is simply again undefined.

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                  • A Afzaal Ahmad Zeeshan

                    Great that you already know the NaN is a number. Now, if you have ever programmed in low-level, you would know that a word is a size given to a data, 1 byte, 2 byte etc. So the size of the register in CPU is a word; pre-defined size, doesn't matter 8-bit 16-bit or what. The size is number, thus, a number is word. :-) Now a word in our language, for example, "Hello", cannot be represented as a word in computer which needs some other type, which is string (array of characters), thus a word is a string. From here comes the metaphor, In programming, a number is a word and a word is a string. :cool:

                    The shit I complain about It's like there ain't a cloud in the sky and it's raining out - Eminem ~! Firewall !~

                    N Offline
                    N Offline
                    newton saber
                    wrote on last edited by
                    #19

                    Great explanation of how semantics and jargon are sometimes or often at odds with meaning.

                    1 Reply Last reply
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                    • P Palash Mondal_

                      Recently had been debugging using the browser console, when I found this answer. Can you guess the type of foo here? Is it a string, function or else?

                      N Offline
                      N Offline
                      newton saber
                      wrote on last edited by
                      #20

                      spoiler alert -- answer is below Opened Chrome Dev console and ran the following.

                      var x = 'garbage' / 10;

                      x
                      NaN

                      x != x // with coercion
                      true

                      x !== x // even without coercion
                      true

                      typeof(x)
                      "number"

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                      • P Palash Mondal_

                        Recently had been debugging using the browser console, when I found this answer. Can you guess the type of foo here? Is it a string, function or else?

                        P Offline
                        P Offline
                        PIEBALDconsult
                        wrote on last edited by
                        #21

                        How about int ?

                        private static System.Random randy = new System.Random() ;
                        int foo { get { return ( randy.Next() ) ; } }

                        :-D

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                        • P PIEBALDconsult

                          How about int ?

                          private static System.Random randy = new System.Random() ;
                          int foo { get { return ( randy.Next() ) ; } }

                          :-D

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                          D Offline
                          Dennis_E
                          wrote on last edited by
                          #22

                          Or DateTime:

                          DateTime foo { get { return DateTime.Now; } }

                          :-D

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                          • N newton saber

                            spoiler alert -- answer is below Opened Chrome Dev console and ran the following.

                            var x = 'garbage' / 10;

                            x
                            NaN

                            x != x // with coercion
                            true

                            x !== x // even without coercion
                            true

                            typeof(x)
                            "number"

                            P Offline
                            P Offline
                            Palash Mondal_
                            wrote on last edited by
                            #23

                            Awesome :thumbsup:

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                            • P Palash Mondal_

                              Recently had been debugging using the browser console, when I found this answer. Can you guess the type of foo here? Is it a string, function or else?

                              U Offline
                              U Offline
                              User 11783308
                              wrote on last edited by
                              #24

                              NaN

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