[SuperZen]

var CreateTest = function CreateTest(name) {
  this.name = name
  this.roll = () => ['simple', 'hard'][Math.round(Math.random())]
}

CreateTest.prototype.renameObj = function () {
  return {
    rename: () => {
      return this.name = `${this.roll()} ${this.name}`
    }
  }
}

var test = new CreateTest('js test')
console.log(test.renameObj().rename())

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