// Callback pattern
function main() {
    asyncApi((err, result) => {
        if (err !== null) {
            console.error(`An Error occurred, ${err.message}`);
        } else {
            console.log(`The result is ${result}`);
        }
    });
}

// Promise Pattern
function main() {
    pAsyncApi()
        .then(result => console.log(`The result is ${result}`))
        .catch(err => console.error(`An error occured ${err.message}`));
}

// Async/Await  Pattern
async function main() {
    try {
        const result = await pAsyncApi();
        console.log(`The result is ${result}`);
    } catch (e) {
        console.error(`An error occured ${e}`);
    }
}