The two key things to notice in the screenshot are the ReactDOM.render () call in the JavaScript at the right, which puts its output into the 'root' element, and the "root" div in the HTML at left.

If you're an aspiring web developer or completely new to coding, JavaScript is a great start. We've put together some of the best free and paid online courses to help you learn this popular coding ...

If you write JavaScript, you have probably used higher-order functions and not even noticed. If you have ever replaced a for loop with an array method, you’ve used higher-order functions.

The PS5 UI has been recreated in JavaScript and it fully explorable with your keyboard. It has also been turned into a coding tutorial.