sivaprabug/File extension Validation

## File extension Validation
<!DOCTYPE html>
<html>

<head>
    <title>
        File Type Validation while - Uploading it using JavaScript
    </title>
    <p>Upload an Image</p>
    <input type="file" id="file" onchange="return fileValidation()" />
    <div id="imagePreview"></div>
    <script>
        function fileValidation() {
            var fileInput = document.getElementById('file');
            var filePath = document.getElementById('file').value;
            var filedetails = document.getElementById('file').files[0];
            var allowedExtensions = /(\.iso|\.img)$/i;
            if (!allowedExtensions.exec(filePath)) {
                alert('Invalid file type');
                fileInput.value = '';
                return false;
            } else {
                alert('Valid file type');
            }
        }
    </script>
    </body>

</html>
	<!DOCTYPE html>
	<html>

	<head>
	<title>
	File Type Validation while - Uploading it using JavaScript
	</title>
	<p>Upload an Image</p>
	<input type="file" id="file" onchange="return fileValidation()" />
	<div id="imagePreview"></div>
	<script>
	function fileValidation() {
	var fileInput = document.getElementById('file');
	var filePath = document.getElementById('file').value;
	var filedetails = document.getElementById('file').files[0];
	var allowedExtensions = /(\.iso\|\.img)$/i;
	if (!allowedExtensions.exec(filePath)) {
	alert('Invalid file type');
	fileInput.value = '';
	return false;
	} else {
	alert('Valid file type');
	}
	}
	</script>
	</body>

	</html>