hackerrank compare the triplets
function compareTriplets(a, b) {
let alice = 0
let bob = 0
for(let i = 0; i < 3; i++) {
if(a[i] > b[i]) {
alice += 1
}
if(a[i] < b[i]) {
bob += 1
}
if(a[i] == b[i]) {
continue
}
}
return [alice, bob] // or String(alice).concat(String(bob)).split('')
}