messages-dispatch.js

class False {
  not() {
    return new True()
  }

  or(aBoolean) {
    return aBoolean
  }

  toString() {
    return 'false'
  }
}

class True {
  not() {
    return new False()
  }

  or(aBoolean) {
    return this
  }

  toString() {
    return 'true'
  }
}

const falsy = new False()
const truthy = new True()

console.log(`falsy.not(): ${falsy.not()}`)
console.log(`falsy.or(truthy): ${falsy.or(truthy)}`)
console.log(`falsy.or(falsy): ${falsy.or(falsy)}`)

console.log(`truthy.not(): ${truthy.not()}`)
console.log(`truthy.or(falsy): ${truthy.or(falsy)}`)
console.log(`truthy.or(truthy): ${truthy.or(truthy)}`)