How to use

assign

function

in

ObjectChain

cleanupBlacklist() {

  let time = new Date(),
   cleared = new Date(db.blacklist.get('cleared').value());

  cleared.setHours(cleared.getHours() + 1);

  if (time > cleared || cleared === 'Invalid Date') {
   db.blacklist.get('list').remove().write();
   db.blacklist.assign({
    cleared: new Date()
   }).write();
  }

 }