JavaScript is the language of the web. It makes websites interactive, creates animations, draws data-driven graphics, and more. It even runs natively in your web browser so you don’t have to install ...

Functional programming, as the name implies, is about functions. While functions are part of just about every programming paradigm, including JavaScript, a functional programmer has unique ...

‘Higher-order functions’ is a fancy term for functions that take other functions as arguments or that return functions. Very powerful!

There’s a lot you can do with JavaScript: Images can swap when you move a mouse over them, form elements can influence each other on the fly, and calculations can be made without having to ...