two fighters, one winner.

Two fighters, one winner.Codewars

Approach

1. find first attacker and set as 'a'

2. find second attacker and set as 'b'

3. calculate (b.health / a.deamaePerAttack) as 'aCount' calculate (a.health / b.deamaePerAttack) as 'bCount'

4. if aCount is less than bCount which means 'a' win. return 'a'.name, otherwise 'b' win. return 'b'.name

Pre-defined class

JavaScript

function Fighter(name, health, damagePerAttack) {
  this.name = name;
  this.health = health;
  this.damagePerAttack = damagePerAttack;
  this.toString = function () {
    return this.name;
  };
}

Solution

const declareWinner = (fighter1, fighter2, firstAttacker) => {
  const a = [fighter1, fighter2].find((v) => v.name === firstAttacker);
  const b = [fighter1, fighter2].find((v) => v.name !== firstAttacker);
  
  return Math.ceil(b.health / a.damagePerAttack) <= Math.ceil(a.health / b.damagePerAttack) ? a.name : b.name;
};