Anyone can forget how to make character classes for a regex, slice a list or do a for loop. This cheat sheet tries to provide a basic reference for beginner and advanced developers, lower the entry barrier for newcomers and help veterans refresh the old tricks.
JavaScript is a programming language that, together with HTML and CSS, is one of the core technologies of the World Wide Web. Over 97% of websites employ JavaScript on the client-side for web page behaviour, typically combining third-party libraries.