benchmark.js

const test = (name, foo, measures = [10, 100, 1000, 10000, 100000, 1000000]) => {
    console.log(name);
    measures.forEach(async n => {
        const start = new Date();
        await Promise.all(new Array(n).fill(1).map(() => foo));
        const end = new Date();
        const time = end.getTime() - start.getTime();
        console.log(`${n} requests`);
        console.log(` Total time: ${time/1000} s`);
        console.log(` Average time: ${time/n} ms`);
        console.log("============================\n");
    });
};