Learn TypeScript 3 by Building Web Applications

Asynchronous code that looks synchronous

Since ES2015, ECMAScript has supported the creation of asynchronous functions. Asynchronous functions are marked as such using the async keyword and can be written as if they were synchronous. They make asynchronous code simpler to read and easier to reason about.

On the other hand, callers of asynchronous functions can wait for the result(s) of the calls instead of relying on separate event handlers and callback functions.

Async/await leverages promises and generators to avoid blocking your code while asynchronous operations are ongoing.

Generators are special function types that return a generator object that implements the Iterator interface with methods such as next(). The interesting thing about ...