JavaScript Tutorial/jQuery/before — различия между версиями

Материал из Web эксперт
Перейти к: навигация, поиск
 
м (1 версия)
 
(нет различий)

Текущая версия на 08:25, 26 мая 2010

Add tag before

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

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


Add text node before

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


before(content): Insert content before each of the matched elements.

<html>
  <head>
    <script type="text/javascript" src="js/jquery-1.3.2.js"></script>
    <script type="text/javascript">
        $(document).ready(function(){
          $("p").before( $("b") );
                
         
        });
    </script>
    
  </head>
  <body>
    <body>
         <b>asdf</b>
         <p>asdf: </p>
    </body>
</html>


Inserts a DOM element before all paragraphs.

<html>
  <head>
    <script type="text/javascript" src="js/jquery-1.3.2.js"></script>
    <script type="text/javascript">
        $(document).ready(function(){
          $("p").before( document.createTextNode("Hello") );
                
         
        });
    </script>
    
  </head>
  <body>
    <body>
         <b>asdf</b>
         <p>asdf: </p>
    </body>
</html>


Inserts a jQuery object (similar to an Array of DOM Elements) before all paragraphs.

<html>
  <head>
    <script type="text/javascript" src="js/jquery-1.3.2.js"></script>
    <script type="text/javascript">
        $(document).ready(function(){
          $("p").before( $("b") );
                
         
        });
    </script>
    
  </head>
  <body>
    <body>
         <b>asdf</b>
         <p>asdf: </p>
    </body>
</html>


Inserts some HTML before all paragraphs.

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