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[edit]

html( )

Get the html contents (innerHTML) of the first matched element. This property is not available on XML documents (although it will work for XHTML documents).
Examples:

Click a paragraph to convert it from html to text.

    $("p").click(function () {
      var htmlStr = $(this).html();
      $(this).text(htmlStr);
    });



<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" 
                    "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
  <script src="http://code.jquery.com/jquery-latest.js"></script>
  
  <script>
  $(document).ready(function(){
    
    $("p").click(function () {
      var htmlStr = $(this).html();
      $(this).text(htmlStr);
    });

  });
  </script>
  <style>
  p { margin:8px; font-size:20px; color:blue; 
      cursor:pointer; }
  b { text-decoration:underline; }
  button { cursor:pointer; }
  </style>
</head>
<body>
  <p>
    <b>Click</b> to change the <span id="tag">html</span>
  </p>
  <p>
    to a <span id="text">text</span> node.
  </p>
  <p>
    This <button name="nada">button</button> does nothing.
  </p>
</body>
</html>

NameType
[edit]

html( val )

Set the html contents of every matched element. This property is not available on XML documents (although it will work for XHTML documents).
Arguments:
valString
Set the html contents to the specified value.
Examples:

Add some html to each div.

$("div").html("<span class='red'>Hello <b>Again</b></span>");


<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" 
                    "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
  <script src="http://code.jquery.com/jquery-latest.js"></script>
  
  <script>
  $(document).ready(function(){
    $("div").html("<span class='red'>Hello <b>Again</b></span>");
  });
  </script>
  <style>
  .red { color:red; }
  </style>
</head>
<body>
  <span>Hello</span>
  <div></div>
  <div></div>
  <div></div>
</body>
</html>

Add some html to each div then immediately do further manipulations to the inserted html.

    $("div").html("<b>Wow!</b> Such excitement...");
    $("div b").append(document.createTextNode("!!!"))
              .css("color", "red");



<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" 
                    "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
  <script src="http://code.jquery.com/jquery-latest.js"></script>
  
  <script>
  $(document).ready(function(){
    
    $("div").html("<b>Wow!</b> Such excitement...");
    $("div b").append(document.createTextNode("!!!"))
              .css("color", "red");

  });
  </script>
  <style>
  div { color:blue; font-size:18px; }
  </style>
</head>
<body>
  <div></div>
  <div></div>
  <div></div>
</body>
</html>

NameType