findMax and the place in the index - 2562

 https://www.acmicpc.net/problem/2562

my attempt  

function findMax(arr) {

const maxResult = Math.max(...arr);

console.log(maxResult);

const el = arr.indexOf(maxResult);

console.log(el + 1);

}

findMax([3, 29, 38, 12, 57, 74, 40, 85, 61]);

others 

const input = require("fs").readFileSync("/dev/stdin").toString().split("\n");

const inputToInt = input.map((num) => (num = parseInt(num)));

let max = 0;

let idx = 0;

for (let i = 0; i < inputToInt.length; i++) {

if (inputToInt[i] > max) {

max = inputToInt[i];

idx = i + 1;

}

}

console.log(max);

console.log(idx);