Dec 20

Capture file extension

Tag: JavaScript — berrisch @ 6:44 pm



This are the javascript regex Regular expressions to check the extension of, for example a file to upload …

Include jQuery - for $.trim() function

 
function checkExtension(obj) {
	expr = /\.([(JPEG)|(JPG)|(GIF)|(PNG)]+)$/;
	//expr = /\.([JPEGIFN]+)$/;
	//expr = /\.([A-Z]+)$/;
	//expr = /\.([^\.]+)$/;
	extension = expr.exec($.trim(obj.value.toUpperCase()));
 
	if (extension)
		for (var i = 0; i < extension.length; ++i)
			alert("Fund " + i + " - " + extension[i]);
 
}

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