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: Feature Engineering, Applied Machine Learning, Machine Learning, Data Preprocessing, Python Programming, Predictive Modeling, Development Environment, Data Manipulation, Exploratory Data Analysis
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Full-Stack Web Development, Node.JS, User Interface (UI), Restful API, Swift Programming, JavaScript Frameworks, Mobile Development, Application Programming Interface (API), Database Software, Web Development, Back-End Web Development, Development Environment, MongoDB, Javascript, Authentications
Beginner · Course · 1 - 3 Months

Skills you'll gain: Cloud Applications, Authentications, Google Cloud Platform, Cloud API, Web Applications, User Accounts, Web Development Tools, Web Development, Network Security
Intermediate · Project · Less Than 2 Hours

Board Infinity
Skills you'll gain: Deepseek, Hugging Face, Large Language Modeling, LLM Application, AI Personalization, ChatGPT, Deep Learning, Open Source Technology, AI Enablement, Model Deployment, Business Modeling, Applied Machine Learning, Analytical Skills, Application Programming Interface (API), Business Process Automation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Full-Stack Web Development, Development Environment, Front-End Web Development, React.js, UI Components, Back-End Web Development, Web Development, Natural Language Processing, Application Programming Interface (API)
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Data Persistence, JSON, User Interface (UI), User Interface and User Experience (UI/UX) Design, Databases, Interactive Data Visualization, Debugging, Database Management, Application Development, Mobile Development, Real Time Data, Application Programming Interface (API), Data Management
Intermediate · Course · 1 - 4 Weeks

SkillUp
Skills you'll gain: Prompt Engineering, AI Workflows, AI Orchestration, Generative AI, ChatGPT, OpenAI API, Microsoft Copilot, AI Enablement, Software Architecture, Integrated Development Environments, Code Review, Software Design, API Design, Debugging, Software Development, Application Development, AI Security, Database Design, Python Programming, Automation
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Selenium (Software), Test Tools, Test Automation, Software Testing, Test Script Development, Test Case, Regression Testing, Test Execution Engine, Javascript and jQuery, Browser Compatibility, Automation, Software Design Patterns, UI Components, Java
Intermediate · Course · 1 - 3 Months

EDUCBA
Skills you'll gain: MongoDB, Data Access, Query Languages, Database Management, NoSQL, Databases, Scripting, Python Programming, Development Environment, Software Installation
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Real Time Data, Transaction Processing, Application Development, .NET Framework, Data Access, C# (Programming Language), Performance Tuning, Programming Principles, System Implementation
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: LangChain, Development Environment, Agentic systems, AI Workflows, Artificial Intelligence, Tool Calling, LLM Application, Database Systems, Database Management, SQL, Database Application, OpenAI API, Software Development Tools, Prompt Engineering
Intermediate · Course · 1 - 3 Months

Birla Institute of Technology & Science, Pilani
Skills you'll gain: Android Jetpack, Extensible Markup Language (XML), Data Management, Application Programming Interface (API)
Intermediate · Course · 1 - 3 Months