How to use await with promise. Javascript.

await.js

// USE BABEL WITH PRESET ES2017

// FUCKING AWESOME PROMISE EXAMPLE

// FIRST PROMISE
function a() {
  return Promise.resolve([1, 2, 3, 4, 5, 6])
  // return Promise.reject(new Error("xxxx"))
}

// WE CAN USE AWAIT UNDER ASYNC FUNCTION ONLY
let b = async () => {
  try {
    let res = await a()
    console.log(res); // This will show array.
  }
  catch (err) {
    console.log(err);
  }
}

console.log(b());