The 4 best Functional Programming courses in 2026

Take your Python programming skills beyond basic syntax by learning how to design modular, reusable, and efficient applications using functional programming and object-oriented programming principles. This course explores how to build scalable Python solutions through functions, recursion, classes, inheritance, exception handling, and advanced object-oriented features. You'll begin by designing reusable functions, managing parameters, and solving structured problems with Python data structures. As you progress, you'll analyze recursion, functional programming patterns, and variable scope befo

With every smartphone and computer now boasting multiple processors, the use of functional ideas to facilitate parallel programming is becoming increasingly widespread. In this course, you'll learn the fundamentals of parallel programming, from task parallelism to data parallelism. In particular, you'll see how many familiar ideas from functional programming map perfectly to to the data parallel paradigm. We'll start the nuts and bolts how to effectively parallelize familiar collections operations, and we'll build up to parallel collections, a production-ready data parallel collections library

Master JavaScript fundamentals, ES6, algorithms, and data structures with free interactive challenges.

Pure functions, immutability, and composition — a friendly intro to FP in JavaScript.