下面的例子可返回表单中元素的数目:
</>code
- <html>
- <body>
- <form id="myForm" method="get">
- Name: <input type="text" size="20" value="Peter Griffin" /><br />
- Text: <input type="text" size="20" value="Hello World" />
- </form>
- <script type="text/javascript">
- document.write("Number of elements in myForm: ");
- document.write(
document.getElementById('myForm').length
);- </script>
- </body>
- </html>
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