$ in JS.

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  • dmjpro
    Top Contributor
    • Jan 2007
    • 2476
    #1

    $ in JS.

    Actually my code is not running, where i am wrong?

    [CODE=HTML]
    <body onload="alert($ ('test_id').val ue);">
    <input type="text" value="ABC" id="test_id"/>
    </body>
    [/CODE]

    Please Help!
    Tags: None
    • acoder
      Recognized Expert MVP
      • Nov 2006
      • 16032
      #2
      Have you defined $ somewhere? Are you using the prototype framework?

        Comment

        • dmjpro
          Top Contributor
          • Jan 2007
          • 2476
          #3
          Originally posted by acoder
          Have you defined $ somewhere? Are you using the prototype framework?
          That's what i wanted ...What is prototype framework?
          Should it be installed separately?
          Please clarify me!

            Comment

            • acoder
              Recognized Expert MVP
              • Nov 2006
              • 16032
              #4
              If you just want to use the dollar function, then you don't need to include the whole prototype package which can be quite large.

              You can define it yourself, e.g.
              [code=javascript]function $() {
              var elems = [];
              for (var i = 0; i < arguments.lengt h; i++) {
              var elem = arguments[i];
              if (typeof elem == 'string')
              elem = document.getEle mentById(elem);
              if (arguments.leng th == 1)
              return elem;
              elems.push(elem );
              }
              return elems;
              }[/code]

                Comment

                • dmjpro
                  Top Contributor
                  • Jan 2007
                  • 2476
                  #5
                  Originally posted by acoder
                  If you just want to use the dollar function, then you don't need to include the whole prototype package which can be quite large.

                  You can define it yourself, e.g.
                  [code=javascript]function $() {
                  var elems = [];
                  for (var i = 0; i < arguments.lengt h; i++) {
                  var elem = arguments[i];
                  if (typeof elem == 'string')
                  elem = document.getEle mentById(elem);
                  if (arguments.leng th == 1)
                  return elem;
                  elems.push(elem );
                  }
                  return elems;
                  }[/code]

                  I understand your point.
                  But whole prototype package where i can it?

                    Comment

                    • acoder
                      Recognized Expert MVP
                      • Nov 2006
                      • 16032
                      #6
                      All you had to do was search for it. Type "prototype" into your favourite search engine and hey presto! It's even included in the Offsite Links thread.

                      OK, I'm feeling generous. Here it is: http://www.prototypejs.org/.

                        Comment

                        • dmjpro
                          Top Contributor
                          • Jan 2007
                          • 2476
                          #7
                          Originally posted by acoder
                          All you had to do was search for it. Type "prototype" into your favourite search engine and hey presto! It's even included in the Offsite Links thread.

                          OK, I'm feeling generous. Here it is: http://www.prototypejs.org/.
                          Ok Thanks!
                          Basically who developed it?

                            Comment

                            • acoder
                              Recognized Expert MVP
                              • Nov 2006
                              • 16032
                              #8
                              Check out the site. It should have some info.

                                Comment

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