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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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  • 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!

    A 1 Reply Last reply
    0
    • 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

      A 1 Reply Last reply
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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 !~

        P 1 Reply Last reply
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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.

                1 Reply Last reply
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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"

                    P 1 Reply Last reply
                    0
                    • 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

                      D 1 Reply Last reply
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                      • P PIEBALDconsult

                        How about int ?

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

                        :-D

                        D Offline
                        D Offline
                        Dennis_E
                        wrote on last edited by
                        #22

                        Or DateTime:

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

                        :-D

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                        0
                        • 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:

                          1 Reply Last reply
                          0
                          • 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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