3] Create and run a JavaScript program Now that we have created an environment for the code to run, let us start coding. To do the same, you need to first create a VSCode file.

However, you may prefer to run an HTML file in a specific browser -- for example, Firefox may contain debugging or design tools that you use during development.

JavaScript is the most in-demand programming language for developer jobs and one of the most versatile languages for full-stack development. Here's what you need to know about JavaScript.