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.

LearnQuest
Skills you'll gain: Model View Controller, Swift Programming, Object Oriented Design, Object Oriented Programming (OOP), Data Structures, iOS Development, Apple iOS, Programming Principles, Mobile Development, Software Design Patterns, Data Management, Software Architecture, Code Reusability, Computational Logic, Development Environment
★ 4.3 (733) · Beginner · Course · 1 - 4 Weeks

Codio
Skills you'll gain: Go (Programming Language), Package and Software Management, Object Oriented Programming (OOP), Web Services, Web Frameworks, Debugging, Python Programming, Server Side, Performance Tuning, Other Programming Languages, Software Engineering, Programming Principles
★ 3.6 (10) · Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Eclipse (Software), Java, Integrated Development Environments, Java Programming, Code Reusability, Functional Design
★ 4.2 (21) · Intermediate · Guided Project · Less Than 2 Hours

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Scalability, Scala Programming, Distributed Computing, Dataflow, Event-Driven Programming, System Design and Implementation, Systems Architecture, Microservices, Software Architecture, Data Pipelines, Software Design Patterns, Cloud Computing, Software Design, Application Frameworks
★ 4.5 (6) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Kotlin, Maintainability, Application Development, Software Documentation, Programming Principles, Program Development, Data Validation, Computational Logic
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Rust (Programming Language), Data Structures, Code Reusability, Package and Software Management, Memory Management
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Object Oriented Programming (OOP), Object Oriented Design, Software Documentation, Java Programming, Java, Technical Documentation, Computer Programming, Programming Principles, Code Reusability, Computer Science
★ 4.1 (21) · Intermediate · Course · 1 - 4 Weeks

Korea Advanced Institute of Science and Technology(KAIST)
Skills you'll gain: Scala Programming, Other Programming Languages, Computer Programming, Programming Principles, Program Development, Theoretical Computer Science
Mixed · Course · 1 - 3 Months

Skills you'll gain: React.js, Code Reusability, Javascript, Front-End Web Development, Web Development
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Data Persistence, Object Oriented Programming (OOP), Javascript, Web Applications, Application Programming Interface (API), User Interface (UI), Interactive Design, Front-End Web Development, Event-Driven Programming, Animations, Scalability
Beginner · Course · 1 - 3 Months

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Apache Spark, Scala Programming, Apache Hadoop, Big Data, Data Manipulation, Distributed Computing, Data Processing, Performance Tuning, SQL, Data Transformation, Network Performance Management, Data Persistence, Data Analysis, Programming Principles
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Object Oriented Design, Object Oriented Programming (OOP), Programming Principles, Computer Programming, Python Programming, Computer Science
★ 4.5 (66) · Intermediate · Course · 1 - 4 Weeks