AoC 2022 day 4

const fs = require('fs');
const eol = require('os').EOL;

const startTime = new Date().getTime();
let part1 = part2 = time = 0;
let input = fs.readFileSync(__dirname + "/data.txt", 'utf8').split(eol);

input.map(val => {
    let [elf1, elf2] = val.split(',').map(v => v.split('-').map(Number));

    if ((elf1[0] <= elf2[0] && elf1[1] >= elf2[1]) || (elf2[0] <= elf1[0] && elf2[1] >= elf1[1]))
        part1++;

    if (elf1[0] <= elf2[1] && elf2[0] <= elf1[1])
        part2++;
})

time = new Date().getTime() - startTime

console.log(`Par3 1: ${part1}\nPart 2: ${part2}\nTimer: ${time} ms`);