TypeScript 2.x By Example

Async-await

TypeScript introduced async-await in the 1.7.x version, but it was only available if your compiler version was ES2015. In the 2.x version, they made it backward-compatible to support ES5 and ES3 JavaScript versions as well.

In TypeScript async-await is built on top of promises and allows us to write asynchronous code in more linear fashion. The main advantage of async-await is that it provides developers with a way to write code, which is similar to writing synchronous code, thus providing better readability and cleaner code.

Let's look at the sample async-await code and go through the differences with promises:

async function callAsyncFunction(id:number) {  console.log("before making a async call");  await doAsyncWork(id);  console ...