Advent of code (2020) - CODE 4 - 2

Advent of code (2020) - CODE 4 - 2

(async () => {
    const fn = item => {
        const {
            byr = null,
            ecl = null,
            eyr = null,
            hcl = null,
            hgt = null,
            iyr = null,
            pid = null
        } = Object.fromEntries(item.map(i => i.split(':')));
        const validBYR = byr.length === 4 && parseInt(byr) >= 1920 && parseInt(byr) <= 2002;
        const validIYR = iyr.length === 4 && parseInt(iyr) >= 2010 && parseInt(iyr) <= 2020;
        const validEYR = eyr.length === 4 && parseInt(eyr) >= 2020 && parseInt(eyr) <= 2030;
        const validHGT = hgt.includes('cm') ? parseInt(hgt) >= 150 && parseInt(hgt) <= 193 : parseInt(hgt) >= 59 && parseInt(hgt) <= 76;
        const validHCL = /#(?:[a-f0-9]{6})\b|\([^\)]*\)/gi.test(hcl);
        const validECL = ['amb', 'blu', 'brn', 'gry', 'grn', 'hzl', 'oth'].some(item => item.includes(ecl));
        const validPID = pid.length === 9;
        return validBYR && validIYR && validEYR && validHGT && validHCL && validECL && validPID;
    };
    const result = [];
    let t = [];
    let validPassport = 0;
    const passportStruct = ['byr', 'iyr', 'eyr', 'hgt', 'hcl', 'ecl', 'pid']; // cid opcional
    const entries = (await(await fetch('https://adventofcode.com/2020/day/4/input')).text()).split('\n').map(item => {
        if (item) {
            t.push(item);
        } else {
            item = t.slice();
            t = [];
            return item;
        }
    }).filter(item => item).map(item => item.map(el => el.split(' ')).flat());
    entries.forEach(item => {
        if (item.length === 8) {
            if (fn(item)) {
                validPassport++;    
            }
        }
        if (item.length === 7) {
            const isValid = !item.some(el => el.includes('cid'));
            if (isValid) {
                if (fn(item)) {
                    validPassport++;    
                }
            }
        }
    });
    const startTime = performance.now();
    const endTime = performance.now();
    console.log(`Pasaportes válidos: ${validPassport}`, `${parseFloat(endTime - startTime).toFixed(4)} ms`);
})();