weird problem with variable

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  • ziemon
    #1

    weird problem with variable

    // index.html

    <a href="test.html ?menu=menu1">me nu1</a>
    <a href="test.html ?menu=menu1_1"> menu1_1</a>

    // index.html


    // test.html

    <html>
    <head>
    <title>Untitled </title>
    <SCRIPT src="CSJSReques tObject.js" type=text/javascript></SCRIPT>
    </head>

    <body">
    <SCRIPT type=text/javascript>
    <!--
    function player(number,n ame,position,he ight,college)
    {
    this.number = number
    this.name = name
    this.position = position
    this.height = height
    this.college = college
    }

    var menu1 = new Array(5)
    menu1[0] = new player("20","Ga ry Payton","Guard" ," 6'4","Oregon State")
    var menu1_1 = new Array(2)
    menu1_1[0] = new player("21","Pe te Payton","Guard" ," 6'4","Oregon State")
    menu1_1[1] = new player("22","Jo hn Payton","Guard" ," 6'4","Oregon State")
    menu1[1] = new player("33","He rsey Hawkins","Guard "," 6'3","Bradley" )
    menu1[2] = new player("42","Vi n Baker","Forward "," 6'11","Hartford ")
    menu1[3] = new player("11","De tlef Schrempf","Forw ard"," 6'10","
    Washington")
    menu1[4] = new player("22","Ji m McIlvaine","Cen ter"," 7'1"," Marquette")

    var x = Request.QuerySt ring("menu")

    for (i = 0; i < x.length; i++)
    {
    document.write( x[i].number + x[i].name + x[i].height + x[i].position +
    x[i].college + "<br>")
    }
    // -->
    </script>
    </body>
    </html>

    // test.html


    y isn;t it working ?
    if i do a check like :

    if(x = "menu1")
    {
    alert("ok")
    }

    it shows its there
    additional info about CSJSRequestObje ct.js can be found :
    Website Closed
    http://www.andrewu.co.uk/tools/request/



    Tags: None
    • Lasse Reichstein Nielsen
      #2
      Re: weird problem with variable

      "ziemon" <news@ziemon.nl > writes:
      [color=blue]
      > <SCRIPT src="CSJSReques tObject.js" type=text/javascript></SCRIPT>[/color]

      You should put quotes around the type attibute value.
      [color=blue]
      > <body">[/color]

      The quote is misplaced here.
      [color=blue]
      > <SCRIPT type=text/javascript>
      > <!--[/color]

      HTML comments are not needed in Javascript.
      [color=blue]
      > var x = Request.QuerySt ring("menu")[/color]

      Let's assume x now contains the string "menu1_1"
      [color=blue]
      > for (i = 0; i < x.length; i++)[/color]

      Then "x.length" is 7, the length of the string "menu1_1". The value of
      "x" is a string, not the array stored in the variable with the same
      name as x's value.
      [color=blue]
      > {
      > document.write( x[i].number + x[i].name + x[i].height + x[i].position +
      > x[i].college + "<br>")[/color]

      So this fails, since "x" has no property called "1" (or if it does, it
      is a single character string which won't have properties called "number",
      "name" etc.).

      What you can do, is to change the call to Request.Queryst ring to

      var x = window[Request.QuerySt ring("menu")];

      Then it lets "x" be the value of the global variable whose name is in
      the querystring, which is what I assume you want.
      [color=blue]
      > y isn;t it working ?[/color]

      Is it "y" or "x" that isn't working? [1]
      [color=blue]
      > if i do a check like :
      >
      > if(x = "menu1")[/color]

      That is not a test, it is an assignment that assigns the string value
      "menu1" to the variable "x". The result is converted to a boolean for
      use in the "if", and it gives true (it is a non-empty string).

      /L
      --
      Lasse Reichstein Nielsen - lrn@hotpop.com
      Art D'HTML: <URL:http://www.infimum.dk/HTML/randomArtSplit. html>
      'Faith without judgement merely degrades the spirit divine.'

        Comment

        • Richard Cornford
          #3
          Re: weird problem with variable

          "Lasse Reichstein Nielsen" <lrn@hotpop.com > wrote in message
          news:znhgv0u7.f sf@hotpop.com.. .
          <snip>[color=blue][color=green]
          > > y isn;t it working ?[/color]
          >
          > Is it "y" or "x" that isn't working? [1][/color]
          <snip>

          :)

          Were you planning a footnote suggesting that abbreviations [1] (even
          when in common use in British, North American or Antipodean, etc. (or
          any of their national/cultural sub groups) English) are inappropriate on
          an international newsgroup where many of the regular contributors write
          English as a second (or third+) language?

          I loathe these "text message" abbreviations. They may be excused when
          the input device is a telephone dialling pad but otherwise I take a
          posters unwillingness to type in those extra letters as sufficient
          reason not to bother answering.

          [1] Not including abbreviations relating to the subject, such as "i18n"
          for internationalis ation, or acronyms.

          Richard.


            Comment

            • Lasse Reichstein Nielsen
              #4
              Re: weird problem with variable

              "Richard Cornford" <richard@litote s.demon.co.uk> writes:
              [color=blue]
              > "Lasse Reichstein Nielsen" <lrn@hotpop.com > wrote in message
              > news:znhgv0u7.f sf@hotpop.com.. .
              > <snip>[color=green][color=darkred]
              > > > y isn;t it working ?[/color]
              > >
              > > Is it "y" or "x" that isn't working? [1][/color]
              > <snip>
              >
              > :)
              >
              > Were you planning a footnote suggesting that abbreviations [1] (even
              > when in common use in British, North American or Antipodean, etc. (or
              > any of their national/cultural sub groups) English) are inappropriate on
              > an international newsgroup where many of the regular contributors write
              > English as a second (or third+) language?[/color]

              That is exactly what I were, just in fewer words (since English is my
              second language, I am not as fluent in it, as I am in my first
              language).

              I am quite capable of deciphering most single-letter abbreviations,
              but it does take more time to comprehend, than the correct spelling
              would. Mostly, it just annoys me to see the language mistreated like
              that.
              [color=blue]
              > I loathe these "text message" abbreviations. They may be excused when
              > the input device is a telephone dialling pad but otherwise I take a
              > posters unwillingness to type in those extra letters as sufficient
              > reason not to bother answering.[/color]

              Hear, hear!
              [color=blue]
              > [1] Not including abbreviations relating to the subject, such as "i18n"
              > for internationalis ation, or acronyms.[/color]

              I don't like l18n either. It attempts, too hard, to be "cute", and I
              just find it plain annoying. It's only 20 letters. If that is too hard
              for someone to type, they can make a macro. It doesn't help when it is
              contagious (witness "l10n" - localization).
              But why should abbreviations be exempt from Sturgeon's law: 90% of
              everything is c2p.

              No, I don't like recursive acronyms either. "GNU" was fun. The rest
              are pale immitations.

              /L
              --
              Lasse Reichstein Nielsen - lrn@hotpop.com
              Art D'HTML: <URL:http://www.infimum.dk/HTML/randomArtSplit. html>
              'Faith without judgement merely degrades the spirit divine.'

                Comment

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