JavaScript is a single-threaded programming language. This means it has one call stack and one memory heap. As expected, it executes code in order and must finish executing a piece of code before moving into the next. However, thanks to the V8 engine, JavaScript can be asynchronous which means we can execute multiple tasks in our code at one time. Async and await are one way to make writing and working with asynchronous code much simpler. They make promises easier to write.

In this article, we will discover async and await in JavaScript and how we can use them. Let’s get right into it.

Async Syntax

The keyword async before a function makes the function return a promise. Which means that the function will run asynchronously. Have a look at the examples below:

async function myFunction() {
  return "Hello";
}

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