HackerRank / Mini-Max Sum

hackerrank--mini-max-sum.js

'use strict';

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

let inputString = '';
let currentLine = 0;

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

process.stdin.on('end', function() {
    inputString = inputString.split('\n');

    main();
});

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

/*
 * Complete the 'miniMaxSum' function below.
 *
 * The function accepts INTEGER_ARRAY arr as parameter.
 */

function miniMaxSum(arr) {
    const sorted = arr.sort((x, y) => x - y);
    const high = sorted.slice(0, 4);
    const low = sorted.reverse().slice(0, 4);
    const sum = (nums) => {
        let sum_ = 0;
        
        for(let num of nums) {
            sum_ += num;
        }
        
        return sum_;
    };
    
    const str = sum(high) + " " + sum(low);
    
    console.log(str);
}

function main() {

    const arr = readLine().replace(/\s+$/g, '').split(' ').map(arrTemp => parseInt(arrTemp, 10));

    miniMaxSum(arr);
}