MDN’s new design is in Beta! A sneak peek: https://blog.mozilla.org/opendesign/mdns-new-design-beta/

 

 <html>
 <head>
   <title>My Document</title>
   <script type="text/javascript">
   function change() {
     // document.getElementsByTagName("H1") returns a NodeList of the h1
     // elements in the document, and the first is number 0:
     var header = document.getElementsByTagName("H1").item(0);
     // the firstChild of the header is a Text node:
     header.firstChild.data = "A dynamic document";
     // now the header is "A dynamic document".
     var para = document.getElementsByTagName("P").item(0);
     para.firstChild.data = "This is the first paragraph.";
     // create a new Text node for the second paragraph
     var newText = document.createTextNode("This is the second paragraph.");
     // create a new Element to be the second paragraph
     var newElement = document.createElement("P");
     // put the text in the paragraph
     newElement.appendChild(newText);
     // and put the paragraph on the end of the document by appending it to
     // the BODY (which is the parent of para)
     para.parentNode.appendChild(newElement);
   }
   </script>
 </head>
 <body>
   <input type="button" value="Change this document." onclick="change()">
   <h1>Header</h1>
   <p>Paragraph</p>
 </body>
 </head>

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 Contributors to this page: mk7087, teoli, NickolayBot, Andreas Wuest, Nickolay, Gor1
 Last updated by: mk7087,