AlphabetWar.js

/**
 * Description:
 *
 * Introduction
 *
 * There is a war and nobody knows - the alphabet war!
 * There are two groups of hostile letters.
 * The tension between left side letters and right side letters
 * was too high and the war began.
 *
 * Task
 *
 * Write a function that accepts fight string consists
 * of only small letters and return who wins the fight.
 * When the left side wins return Left side wins!,
 * when the right side wins return Right side wins!,
 * in other case return Let's fight again!.
 *
 * The left side letters and their power:
 *
 *  w - 4
 *  p - 3
 *  b - 2
 *  s - 1
 *
 * The right side letters and their power:
 *
 *  m - 4
 *  q - 3
 *  d - 2
 *  z - 1
 *
 * The other letters don't have power and are only victims.
 *
 * Example
 *
 * alphabetWar("z");        //=> Right side wins!
 * alphabetWar("zdqmwpbs"); //=> Let's fight again!
 * alphabetWar("zzzzs");    //=> Right side wins!
 * alphabetWar("wwwwwwz");  //=> Left side wins!
 *
 *
 * Kata URL: https://www.codewars.com/kata/59377c53e66267c8f6000027
 *
 *
 * @param {*} fight
 * @returns
 */

function alphabetWar(fight) {
  const weightedLetters = {
    leftSideLetters: {
      w: 4,
      p: 3,
      b: 2,
      s: 1,
    },
    rightSideLetters: {
      m: 4,
      q: 3,
      d: 2,
      z: 1,
    },
  };
  let leftSideScore = 0;
  let rightSideScore = 0;

  for (let i = 0; i < fight.length; i++) {
    try {
      if (
        "undefined" != typeof weightedLetters.leftSideLetters[fight.charAt(i)]
      ) {
        leftSideScore += weightedLetters.leftSideLetters[fight.charAt(i)];
      }
    } catch (error) {}

    try {
      if (
        "undefined" != typeof weightedLetters.rightSideLetters[fight.charAt(i)]
      ) {
        rightSideScore += weightedLetters.rightSideLetters[fight.charAt(i)];
      }
    } catch (error) {}
  }

  if (leftSideScore === rightSideScore) {
    return "Let's fight again!";
  } else if (leftSideScore > rightSideScore) {
    return "Left side wins!";
  } else {
    return "Right side wins!";
  }
}