![]() Never fear - this article aims to save you from tearing your hair out over such problems by providing you with some simple tips on how to find and fix errors in JavaScript programs. When you built up the "Guess the number" game in the previous article, you may have found that it didn't work. What went wrong? Troubleshooting JavaScript Here you'll build up a simple "Guess the number" game, step by step. Now you've learned something about the theory of JavaScript, and what you can do with it, we are going to give you a crash course on the basic features of JavaScript via a completely practical tutorial. Welcome to the MDN beginner's JavaScript course! In this first article we will look at JavaScript from a high level, answering questions such as "what is it?", and "what is it doing?", and making sure you are comfortable with JavaScript's purpose.
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