Understand promises before you start using async/await

With Babel now supporting async/await out of the box, and ES2016 (or ES7) just around the corner, more and more people are realizing how awesome this pattern is for writing asynchronous code, using synchronous code structure. This is a good thing™, and ought to improve code quality a whole lot. However, what a lot of people may have missed is that the entire foundation for async/await is promises.

[teppeis]

お前らasync/awaitに浮かれる前にちゃんとPromise勉強せい！という話 / “Understand promises before you start using async/await — Medium”

[efcl]

async/awaitを使う前にPromiseについて理解しようという話

[ledsun]

JavaScriptのasync/awaitは（C#のTaskの代わりに）Promiseを使うのか