jQuery Form File upload selector
Description and Syntax
$(":file")
selects all file upload fields (<input type="file">)
Examples
The following code count the file upload elements.
<html>
<head>
<script src="http://java2s.com/style/jquery-1.8.0.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){<!-- w w w . j a v a 2 s . c om-->
alert($(":file").length);
});
</script>
</head>
<body>
<body>
<input type="button" value="Input Button"/>
<input type="checkbox">java2s.com</input>
<input type="checkbox" />
<input type="checkbox" />
<input type="file" />
<input type="hidden" />
<input type="image" />
<input type="password" />
<input type="radio" />
<input type="reset" />
<input type="submit" />
<input type="text" />
<select><option>Option<option/></select>
<textarea></textarea>
<button>Button</button>
</body>
</html>