warriors.js

const createWarrior = function createWarrior(name) {
  let hp = 100
  let battleCryInterval = 0

  return {
    bash: function(target) {
      target.reduceHp((target.getHp() - 10))
      return this
    },
    // Increase the wrarior's health by 60, decrementing it by 1 every second for 60 seconds
    battleCry: function battleCry() {
      hp += 60
      battleCryInterval = setInterval(() => {
        hp -= 1
      }, 1000)
      setTimeout(() => {
        if (battleCryInterval) {
          clearInterval(battleCryInterval)
        }
      }, 60000)
      return this
    },
    getHp: function getHp() {
      return hp
    },
    reduceHp: function reduceHp(count) {
      hp -= count
    }
  }
}

const warrior = createWarrior('chris')
const otherWarrior = createWarrior('bob')

warrior
  .battleCry()
  .bash(otherWarrior)
  .bash(otherWarrior)
  .bash(otherWarrior)
  .bash(otherWarrior)
  .bash(otherWarrior)

const otherWarriorsHp = otherWarrior.getHp()

console.log(otherWarriorsHp) // result: 100