Submission for https://www.hackerrank.com/challenges/compare-the-triplets

compare_triplets.js

var a0 = 1;
var a1 = 2;
var a2 = 3;

var b0 = 4;
var b1 = 5;
var b2 = 6;
  
var ranks = [
  [a0,b0],
  [a1,b1],
  [a2,b2]
]; 

var compareTriplets = function (ranks,val) {
  
  var res = ranks.map(function (rank,index){
      return rank[0] > rank[1] ? 1 : rank[0] === rank[1] ? 0 : -1;
    }).reduce(function (total,rank){
      return rank === val ? total + 1 : total  + 0;
    },0);
  
  return res;
}

console.log(compareTriplets(ranks,1) + " " + compareTriplets(ranks,-1));