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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, you are right but here foo is actually NaN, but the question is `What is type of foo` So, the real answer is `number` Since, typeof NaN returns "number" Cheers!

    A Offline
    A Offline
    Afzaal Ahmad Zeeshan
    wrote on last edited by
    #9

    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 !~

    P Sander RosselS 2 Replies 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 !~

      P Offline
      P Offline
      Palash Mondal_
      wrote on last edited by
      #10

      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 1 Reply Last reply
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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 !~

        P N 2 Replies Last reply
        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

            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! :)

                  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?

                    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"

                          P 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?

                            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

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

                              Or DateTime:

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

                              :-D

                              1 Reply Last reply
                              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

                                  1 Reply Last reply
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