Functional programming courses can help you learn concepts like first-class functions, immutability, and higher-order functions, along with practical techniques for managing state and side effects. You can build skills in recursive problem-solving, data transformation, and leveraging pure functions for cleaner code. Many courses introduce tools such as Haskell, Scala, and JavaScript, showcasing how these languages facilitate functional programming principles and enhance software development practices.

Skills you'll gain: Logistic Regression, Predictive Modeling, SAS (Software), Statistical Modeling, Regression Analysis, Model Evaluation, Statistical Analysis, Data Analysis, Model Deployment, Data Preprocessing, Statistical Methods, Probability & Statistics
Intermediate · Course · 1 - 3 Months
Skills you'll gain: Jest (JavaScript Testing Framework), User Acceptance Testing (UAT), Cucumber (Software), Postman API Platform, Software Testing, Behavior-Driven Development, Test Tools, Selenium (Software), Test Driven Development (TDD), API Testing, Unit Testing, Performance Testing, Functional Testing, Test Automation, Web Development Tools, Usability Testing, User Interface (UI), Test Case, Javascript
Beginner · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Claude Code, Vibe coding, Anthropic Claude, Model Context Protocol, Application Development, Command-Line Interface, Application Design, Programming Principles, Generative AI, Automation, Generative AI Agents, Image Analysis, Artificial Intelligence and Machine Learning (AI/ML), Agentic systems
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: User Interface and User Experience (UI/UX) Design, Interaction Design, Figma (Design Software), Wireframing, Usability, Web Content Accessibility Guidelines, User Centered Design, Web Design, Human Centered Design, User Flows, Prototyping, Mockups, Graphic Design
Beginner · Course · 1 - 4 Weeks
Duke University
Skills you'll gain: Responsible AI, Large Language Modeling, Decision Tree Learning, Data Ethics, Regression Analysis, Predictive Modeling, Artificial Intelligence, Machine Learning, Statistical Modeling, Python Programming, Logistic Regression, Deep Learning, Artificial Neural Networks
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Object Oriented Design, Object Oriented Programming (OOP), Unified Modeling Language, JUnit, Software Testing, Software Engineering, Java, Java Programming, Computer Programming, Unit Testing, Program Development, Software Design, Test Driven Development (TDD), Conceptual Design
Build toward a degree
Intermediate · Course · 1 - 3 Months

Skills you'll gain: IBM Cloud, Cryptography, Algorithms, Python Programming, Linear Algebra, Computational Thinking, Jupyter, Simulation and Simulation Software, Physics, Software Installation, Development Environment
Beginner · Course · 3 - 6 Months

Pontificia Universidad Católica de Chile
Skills you'll gain: Computer Architecture, System Design and Implementation, Computational Logic, Computer Hardware, Functional Design, Data Storage
Mixed · Course · 1 - 3 Months

Skills you'll gain: API Testing, Test Automation, Test Script Development, Application Programming Interface (API), Test Case, Restful API, Software Testing, Configuration Management, Java Programming
Intermediate · Guided Project · Less Than 2 Hours

Goodwill Industries International
Skills you'll gain: digital literacy, Cultural Responsiveness, Community Outreach, Training Programs, Relationship Building, Active Listening, Cultural Diversity, Computer Literacy, Disabilities, Workforce Development, Community Development, Web Content Accessibility Guidelines, Diversity Awareness, Curriculum Planning, Needs Assessment, Digital Communications, Rapport Building, Professional Development, Ethical Standards And Conduct, Program Evaluation
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Excel Macros, Visual Basic (Programming Language), Data Structures, Scripting, Programming Principles, Automation, Scripting Languages, Microsoft Development Tools, Computational Logic
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Unity Engine, Game Design, Video Game Development, Performance Tuning, User Interface (UI), Animation and Game Design, Event-Driven Programming, Virtual Environment, UI Components, C# (Programming Language), Program Development, Debugging, 3D Modeling, Object Oriented Programming (OOP), System Configuration, User Interface (UI) Design, Object Oriented Design, Scripting, Prototyping, Animations
Beginner · Specialization · 3 - 6 Months