async.js

// or even better: https://blog.risingstack.com/mastering-async-await-in-nodejs/
// https://github.com/iagodahlem/clima-cli/blob/master/src/utils/weather.js
// https://github.com/axios/axios


async function f() {

    let result = await e(1500);
    let output = await d(result);

    console.log(output);
}

async function e (delay) {
    return new Promise((resolve, reject) => {
        setTimeout(() => {
            resolve(c());
        }, delay || 1000);
    })
}


function c () {
    return 'a ordem do dia é: '
}

function d (str) {
    return str + 'promessas'
}

f();