HackerRank - Mini-Max sum (JS)

main.js

//https://www.hackerrank.com/challenges/mini-max-sum/problem
'use strict';

process.stdin.resume();
process.stdin.setEncoding('utf-8');

let inputString = '';
let currentLine = 0;

process.stdin.on('data', inputStdin => {
    inputString += inputStdin;
});

process.stdin.on('end', _ => {
    inputString = inputString.replace(/\s*$/, '')
        .split('\n')
        .map(str => str.replace(/\s*$/, ''));

    main();
});

function readLine() {
    return inputString[currentLine++];
}

// Complete the miniMaxSum function below.
function miniMaxSum(arr) {
    arr = arr.sort();
    let arrLength = 5;
    let maxIndex = 4;
    let minSum = 0;
    let maxSum = 0;
    
    for(let i=0;i<=3;i++){
        minSum += arr[i];
        maxSum += arr[maxIndex - i]
    }
    
    console.log(minSum + " " + maxSum);
    
}

function main() {
    const arr = readLine().split(' ').map(arrTemp => parseInt(arrTemp, 10));

    miniMaxSum(arr);
}