Compare Triplets Hacker Rank Solution

function compareTriplets(a, b) {
  let output = [0,0]
  for(let i = 0; i < a.length;i++){
    if(a[i] < b[i]) output[1]++
    else if(a[i] > b[i]) output[0]++
  }
  return output;
}  

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