const data = Array.from({ length: 100000000 }, (_, i) =>
    Math.floor(Math.random() * 1000000),
);

function process1(input) {
    return input
        .filter((n) => n % 2 === 0)
        .map((n) => n * 2)
        .reduce((a, b) => a + b, 0);
}

function process2(input) {
    let sum = 0;

    for (const n of input) {
        if (n % 2 !== 0) {
            continue;
        }

        const doubled = n * 2;

        sum += doubled;
    }

    return sum;
}

const start1 = process.hrtime();

process1(data);

const end1 = process.hrtime(start1);

console.log(`process1: ${end1[0]}s ${end1[1] / 1e6}ms`);

const start2 = process.hrtime();

process2(data);

const end2 = process.hrtime(start2);

console.log(`process2: ${end2[0]}s ${end2[1] / 1e6}ms`);