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.

American Psychological Association
Skills you'll gain: Stress Management, Mental Health Diseases and Disorders, Mental Health, Mental Health Therapies, Psychological Evaluations, Behavioral Health, Clinical Psychology, Nutrition and Diet, Patient Evaluation, Culture, Cultural Sensitivity, Psychosocial Assessments, Social Determinants Of Health, Health Promotion, Immunology, Crisis Intervention, Health Education, Science and Research, Patient Treatment, Clinical Assessment
★ 4.8 (99) · Beginner · Specialization · 3 - 6 Months

University of Maryland, College Park
Skills you'll gain: Team Performance Management, Project Management, Compliance Management, Agile Software Development, Management Training And Development, Strategic Decision-Making, Expectation Management, Drive Engagement, Plan Execution, Milestones (Project Management), Stakeholder Analysis, Resource Management, People Development, Governance Risk Management and Compliance, Risk Management, Technical Management, Change Control, Project Planning, Project Schedules, Technical Documentation
★ 4.6 (296) · Beginner · Specialization · 3 - 6 Months

Columbia University
Skills you'll gain: Regression Analysis, Derivatives, Financial Market, Statistical Methods, Market Data, Financial Modeling, Securities (Finance), Mathematical Modeling, Numerical Analysis, Equities, Model Optimization, Python Programming, Algorithms, Case Studies
★ 4.4 (47) · Intermediate · Course · 1 - 3 Months

Peking University
Skills you'll gain: C++ (Programming Language), Object Oriented Programming (OOP), File I/O, C (Programming Language), Code Reusability, Algorithms, Data Structures
★ 4.7 (813) · Mixed · Course · 1 - 3 Months

New York University
Skills you'll gain: Supervised Learning, Machine Learning Methods, Dimensionality Reduction, Unsupervised Learning, Machine Learning Algorithms, Applied Machine Learning, Decision Tree Learning, Machine Learning, Machine Learning Software, Financial Trading, Financial Market, Reinforcement Learning, Scikit Learn (Machine Learning Library), Financial Services, Market Data, Correlation Analysis, Exploratory Data Analysis, Portfolio Management, Python Programming, Artificial Neural Networks
★ 3.7 (345) · Intermediate · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Individualized Education Programs (IEP), Special Education, School Psychology, Case Studies, Empathy & Emotional Intelligence, School Counseling, Teaching, Student Support and Services, Social and Human Services, Mental Health, Preventative Care, Health Education, Health Promotion, Mental Health Diseases and Disorders, Behavior Management, Positive Behavior Support, Developmental Disabilities, Crisis Intervention, Functional Behavior Assessment, Trauma Care
★ 4.8 (908) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), HTML and CSS, Web Development, Web Applications, Web Design, Front-End Web Development
★ 4.5 (554) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Node.JS, API Gateway, MySQL, Restful API, MongoDB, OAuth, Microservices, API Design, NoSQL, Object-Relational Mapping, Application Programming Interface (API), Database Design, Relational Databases, Unit Testing, SQL, Databases, MySQL Workbench, Server Side, Application Deployment, Javascript
★ 3.6 (116) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: User Interface (UI), iOS Development, Mobile Development, User Interface (UI) Design, Apple iOS, User Interface and User Experience (UI/UX) Design, UI Components, Swift Programming, Application Development, Interactive Design, Cross Platform Development, Animations
★ 4.7 (118) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Embedded Systems, Embedded Software, C (Programming Language), C and C++, Programming Principles, Memory Management, Hardware Architecture, Computational Logic, Computer Architecture, Computer Programming, Peripheral Devices
★ 4.5 (44) · Intermediate · Course · 1 - 4 Weeks

Vanderbilt University
Skills you'll gain: AI Orchestration, Agentic Workflows, OpenAI API, Generative AI Agents, LLM Application, Prompt Patterns, AI Workflows, Prompt Engineering, Agentic systems, AI Security, Business Logic, File I/O, Transaction Processing, Software Architecture, Memory Management
★ 4.7 (138) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Computer Vision, Image Analysis, Model Evaluation, Model Training, Deep Learning, Matlab, Machine Learning Methods, Data Preprocessing, Machine Learning, Classification Algorithms, Machine Learning Algorithms, Transfer Learning, Anomaly Detection, Geospatial Information and Technology, Traffic Flow Optimization, Artificial Intelligence and Machine Learning (AI/ML), Algorithms
★ 4.6 (99) · Intermediate · Specialization · 1 - 3 Months