The HTML DOM enables you to navigate within a node tree using node relationships.
HTML DOM navigation syntax
getElementsByTagName() method returns the node list. A node list is an array of nodes.
HTML DOM navigation example
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> </head> <body> <p>Hello World!</p> <p>DOM 是非常有用的!</p> <p>这个实例演示了 <b>length</b> 属性。</p> <script> x=document.getElementsByTagName("p"); for (i=0;i<x.length;i++) { document.write(x[i].innerHTML); document.write("<br>"); } </script> </body> </html>
Run instance »
Click the "Run instance" button to view the online instance