Actually my main question was using Promise.prototype.catch() in async/await ES8 syntax, Undoubtedly Promise.prototype.then() is existed in essence of async/await syntax.

I searched about using Promise.prototype.catch() in async/await and found this:

async () => {

  try {

    const result1 = await firstAsynchronousFunction();

    const result2 = await secondAsynchronousFunction(result1);

    console.log(result2);

  } catch(err) {

    throw new Error(`Something failed`);

  }

}

And absolutely I knew about Promise chaining, like:

new Promise((resolve) => {

  console.log(`Initial`);

  resolve();

})

.then(() => {

  console.log(`Task Number One`);

})

.catch(() => {

  console.log(`Task in Error`);

})

.finally(() => {

  console.log(`All Tasks is Done`);

})

So, my question is how I can use finally in async/await syntax?