combat.js (8kyu 64)

in about Dev on Algorithm

Codewars 알고리즘 풀이


Problem

  • Create a combat function that takes the player’s current health and the amount of damage received, and returns the player’s new health.
    • 플레이어의 현재 health와 받은 damage를 사용해서, 새로운 health를 반환한다.
  • Health can’t be less than 0.
    • health는 0보다 작을 수 없다.


Solution 01

function combat(health, damage) {
  if (health - damage < 0) {
    return 0;
  } else {
    return health - damage;
  }
}

combat(100, 5);    // 95
combat(100, 100);  // 0
combat(100, 120);  // 0


Solution 02

function combat(health, damage) {
  if (health < damage) {
    return 0;
  } else {
    return health - damage;
  }
}

combat(100, 5);    // 95
combat(100, 100);  // 0
combat(100, 120);  // 0


Solution 03

function combat(health, damage) {
  return health < damage ? 0 : health - damage;
}

combat(100, 5);    // 95
combat(100, 100);  // 0
combat(100, 120);  // 0