Learn how to create a callback function in JavaScript and use it for various purposes, such as asynchronous programming, modularity, flexibility, and custom events.

In the first example, every async function takes a callback as its last argument. In the second one, every async function takes s (an aStack) as its first argument. In the first example, data is ...

JavaScript itself is synchronous and single-threaded language. but you can write code in such a manner that function execution take a long time and can be interleaved with other operations. First, let ...

Callbacks work fine for handling asynchronous code in JavaScript, but promises and the async and await keywords are cleaner and more flexible. Topics Spotlight: New Thinking about Cloud Computing ...

A few months before its expected approval, ECMAScript 2017, the latest official specification underlying JavaScript, has been fleshed out with async functions and shared memory capabilities ...