things_get_out_of_hand.js

const getAggregates = report => {
  // Announce… uh, a lot of goals
  let sumOfBalance = 0;
  let count = 0;
  let sumOfInterest = 0;
  let numberInRepayment = 0;
  // …20 other declarations here…
  let obscureCalculation = 0;

  report.forEach(function (record) {
    // A lot of updates?
    sumOfBalance += record.balance;
    count += 1;
    sumOfInterest += record.interest;
    numberInRepayment += record.inRepayment ? 1 : 0;
    // .. 20 other calculations here…
    obscureCalculation = insaneProcedure(obscureCalculation, record)
  });
  
  // Return a huge object
  return {
    totalBalance: sumOfBalance,
    // … 23 other keys here …
    length: count
   };
};