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

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

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 ...

Keep following along as Thau gets down and dirty with the JavaScript Document Object Model, windows and frames, JavaScript syntax with loops, arrays, and functions, and forms.

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