How to use

done

function

in

Stream

folderToDocuments(linksPath)
 .each(result => {
  index.addDoc(result);
 })
 .done(() => {
  const indexJSON = index.toJSON();
  fs.writeFile(indexPath, JSON.stringify(indexJSON), () => {
   console.log('Successfully saved index!');
  });
 });

.done(() => {
 if (shouldThrow) {
  throw new Error('Possible duplicate detected!');