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

This detailed tutorial shows how to implement pure functions in JavaScript that are deterministic and referentially transparent, and create no side effects.

IDG For starters, let’s create a function that draws a watercolor spot with a given position, radius, and hue. P5.js gives us a function to draw an ellipse that we already used last week. By ...

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 ...

How to Populate Text Fields From URL Variables. Many business websites use forms to capture user data. These forms use HTML markup and optionally JavaScript functions. Your website may use URL ...

The PS5 UI has been recreated in JavaScript and it fully explorable with your keyboard. It has also been turned into a coding tutorial.

This JavaScript tutorial that’s currently doing the rounds on sites like Reddit is a great example, then, as it’s based on the PlayStation 5’s user interface.