1function getFileNameWithExt(event) {
2
3  if (!event || !event.target || !event.target.files || event.target.files.length === 0) {
4    return;
5  }
6
7  const name = event.target.files[0].name;
8  const lastDot = name.lastIndexOf('.');
9
10  const fileName = name.substring(0, lastDot);
11  const ext = name.substring(lastDot + 1);
12
13  outputfile.value = fileName;
14  extension.value = ext;
15  
16}