const robotFactory = (model, mobile) => {
  return {
    model,
    mobile,
    beep() {
      console.log('Beep Boop');
    }
  }
}

// To check that the property value shorthand technique worked:

const newRobot = robotFactory('P-501', false)

console.log(newRobot.model)
console.log(newRobot.mobile)

Simple factory practice.