Consider this code snippet using Null Object pattern:

Consider this code snippet using Null Object pattern:

class Logger {
  log(message) { console.log(message); }
}

class NullLogger {
  log(message) { /* do nothing */ }
}

function process(data, logger) {
  logger.log('Start');
  // process data
  logger.log('End');
}

const logger = new NullLogger();
process('input', logger);

What will be the output when this code runs?