now-cli/lib/logs.js

exports.compare = function (a, b) {
  return a.serial.localeCompare(b.serial) ||
    // for the case serials are a same value on old logs
    a.created.getTime() - b.created.getTime()
}

exports.deserialize = function (log) {
  return Object.assign({}, log, {
    data: new Date(log.date),
    created: new Date(log.created)
  })
}