‘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.

What are the best programming languages to learn if you’re just starting out? Use our guide to get familiar with seven good languages for beginning coders.

Using Quarto with Observable JavaScript is a great solution for R and Python users who want to create more interactive and visually engaging reports.