Extract File JS Fundamentals

function extractFile(data) {
  let partsOfData = data.split('\\');
  let lastElement = partsOfData.pop();
  let dotIndex = lastElement.lastIndexOf('.');
  let fileName = lastElement.substring(0, dotIndex);
  let extension = lastElement.substring(dotIndex + 1);
  console.log(`File name: ${fileName}`);
  console.log(`File extension: ${extension}`);
}