Building a website is a rewarding project that allows you to celebrate your passions and personality. As you continue to learn HTML, CSS and JavaScript, embrace a growth mindset.

Beyond the usual quick tips, let's look at both the business case and the technical side of keeping React bundles lean.

Of course, the developer also notes that not every app that injects JavaScript code into an in-app browser does so for malicious purposes, since JavaScript is the basis of many web features.

Discover powerful techniques for writing efficient, maintainable, and scalable JavaScript code in web development.

JavaScript placement: The first dropdown defines where the JavaScript code is placed and executed. The default is onLoad, which means it is executed via the web page’s onLoad event.

Is it common to minimize JavaScript usage when building a website? Counting on users to have JavaScript enabled is a sure bet—or is it?

Learn from Google's Martin Splitt how developers and SEO professionals can become a team and solve JavaScript challenges together.