Promises and Async

Promises and Async

Promises and Async is a core part of JavaScript. In this case file you'll learn what it is, why it matters, and how to use it in real code.

Understanding promises and async well means you can read other people's JavaScript code with confidence, and avoid the most common beginner mistakes in this area.

Key points:

• What promises and async means in the context of JavaScript
• A minimal example you can run or read in the playground on the right
• A common mistake to avoid when working with promises and async

// JavaScript: Promises and Async
function demo() {
  console.log("Exploring Promises and Async in JavaScript");
}

demo();

Tip: Try changing a value in the code on the right and re-running it — small experiments are the fastest way to build real intuition for promises and async.