JavaScript Tutorial/jQuery/toggle

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30. Click to toggle opacity

<html>
  <head>
    <script type="text/javascript" src="js/jquery-1.3.2.js"></script>
    <script type="text/javascript">
        $(document).ready(function(){
                $("#my").toggle(
                  function(event) {
                    $(event.target).css("opacity",0.4);
                  },
                  function(event) {
                    $(event.target).css("opacity",1.0);
                  }
                );
        });
    </script>
  </head>
  <body>
    <body>
        <div id="my">asdf</div>
    </body>
</html>


30. Click to toggle style

<html>
  <head>
    <script type="text/javascript" src="js/jquery-1.3.2.js"></script>
    <script type="text/javascript">
        $(document).ready(function(){

                $("p").click(function () {
                    $("p").toggle();
                });

        });
    </script>
  </head>
  <body>
    <body>
        <p>Hello</p>
    </body>
</html>


30. Normal toggle

<html>
  <head>
    <script type="text/javascript" src="js/jquery-1.3.2.js"></script>
    <script type="text/javascript">
        $(document).ready(function(){
                
                $("p").click(function () {
                    $("p").toggle("normal");
                });
        });
    </script>
  </head>
  <body>
    <body>
        <p>Hello</p>
    </body>
</html>


30. Slow toggle

<html>
  <head>
    <script type="text/javascript" src="js/jquery-1.3.2.js"></script>
    <script type="text/javascript">
        $(document).ready(function(){
                
                $("p").click(function () {
                    $("p").toggle("slow");
                });
        });
    </script>
  </head>
  <body>
    <body>
        <p>Hello</p>
    </body>
</html>


30. Toggle among two or more function calls every other click

<html>
  <head>
    <script type="text/javascript" src="js/jquery-1.3.2.js"></script>
    <script type="text/javascript">
    
        $(document).ready(function(){
             $("div").toggle(
                  function () {
                     $(this).css({"color":"blue"});
                  },
                  function () {
                     $(this).css({"color":"red"});
                  },
                  function () {
                     $(this).css({"color":"yellow"});
                  }
             );
        });
    </script>

  </head>
  <body>
    <body>
       <div>header 1</div>
    </body>
</html>


30. Toggle fast

<html>
  <head>
    <script type="text/javascript" src="js/jquery-1.3.2.js"></script>
    <script type="text/javascript">
        $(document).ready(function(){
                
                $("p").click(function () {
                    $("p").toggle("fast");
                });
        });
    </script>
  </head>
  <body>
    <body>
        <p>Hello</p>
    </body>
</html>


30. toggle(fn, fn1): when clicking matched element, the first specified function is fired, clicked again, the second is fired.

<html>
  <head>
    <script type="text/javascript" src="js/jquery-1.3.2.js"></script>
    <script type="text/javascript">
        $(document).ready(function(){
                
            $("li").toggle(
              function () {
                $(this).css("list-style-type", "disc")
                       .css("color", "blue");
              },
              function () {
                $(this).css({"list-style-type":"", "color":""});
              }
            );

        });
    </script>
  </head>
  <body>
    <body>
         <ul>
            <li>A</li>
            <li>B</li>
            <li>C</li>
            <li>D</li>
         </ul>
       
                         
    </body>
</html>


30. Toggle in milliseconds

<html>
  <head>
    <script type="text/javascript" src="js/jquery-1.3.2.js"></script>
    <script type="text/javascript">
        $(document).ready(function(){
                
                $("p").click(function () {
                    $("p").toggle(1000);
                });
        });
    </script>
  </head>
  <body>
    <body>
        <p>Hello</p>
    </body>
</html>


30. Toggle true and false

<html>
  <head>
    <script type="text/javascript" src="js/jquery-1.3.2.js"></script>
    <script type="text/javascript">
        $(document).ready(function(){
                var c = 0;
                $("p").click(function () {
                    $("p").toggle( c++ % 2 == 0 );
                });
        });
    </script>
  </head>
  <body>
    <body>
        <p>Hello</p>
    </body>
</html>


30. Use toggle function to change class

<html>
  <head>
    <script type="text/javascript" src="js/jquery-1.3.2.js"></script>
    <script type="text/javascript">
    
        $(document).ready(function(){
             $("div").toggle(
                    function () {
                        $(this).addClass("my");
                    },
                    function () {
                        $(this).removeClass("my");
                    }
             );
        });
    </script>
    <style>
  .my { color:blue; }
  </style>

  </head>
  <body>
    <body>
       <div>header 1</div>
    </body>
</html>