JavaScript courses can help you learn programming fundamentals, DOM manipulation, asynchronous programming, and event-driven development. You can build skills in debugging, working with APIs, and creating interactive web applications. Many courses introduce tools like Node.js for server-side development, React for building user interfaces, and Git for version control, showing how these skills come together in real-world projects.
Skills you'll gain: Apache Kafka, Real Time Data, Apache Spark, Data Pipelines, PySpark, Scalability, Data-Driven Decision-Making, Fraud detection, Data Processing, Data Persistence, Event Monitoring, Data Transformation, JSON, Event Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: React Redux, React Native, React.js, Application Development, Scalability, Data Validation, UI Components, Web Applications, Mobile Development, Data Persistence, Business Logic, Application Design, Front-End Web Development, Authentications, User Interface (UI), User Experience Design, Software Design, User Interface and User Experience (UI/UX) Design, User Interface (UI) Design, Node.JS
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Retrieval-Augmented Generation, Model Context Protocol, Agentic Workflows, Prompt Engineering, Anthropic Claude, AI Orchestration, Application Programming Interface (API), Prompt Patterns, Restful API, Prompt Engineering Tools, LLM Application, JSON, Generative AI Agents, Tool Calling, Generative AI, Artificial Intelligence, Agentic systems, Automation, Scalability, Servers
Intermediate · Specialization · 1 - 3 Months

Pragmatic AI Labs
Skills you'll gain: Prompt Engineering, Hugging Face, Generative AI, JSON
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Angular, Dataflow
Intermediate · Course · 1 - 3 Months

Skills you'll gain: AI Security, Responsible AI, Authorization (Computing), JSON, VPN Clients
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Event-Driven Programming, Server Side, Front-End Web Development, Computer Networking
Beginner · Course · 1 - 4 Weeks

University of Pittsburgh
Skills you'll gain: Web Services, Cloud Computing, Cloud Computing Architecture, Cloud Storage, Cloud Infrastructure, Cloud Applications, Google Cloud Platform, Flask (Web Framework), Distributed Computing, Containerization, Software Architecture, Docker (Software), Virtualization, Restful API, JSON, Microservices, Scalability, Extensible Markup Language (XML), API Design, Computer Architecture
Build toward a degree
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Amazon Elastic Compute Cloud, Amazon Web Services, Cloud Hosting, Front-End Web Development, React.js, Javascript, Web Development Tools, Full-Stack Web Development, Web Applications, Cloud Security, Hypertext Markup Language (HTML)
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Digital Marketing, Search Engine Optimization, Keyword Research, ChatGPT, Content Development and Management, Web Content, Content Performance Analysis, Technical Writing, JSON
Beginner · Course · 1 - 4 Weeks

Universidad Nacional Autónoma de México
Skills you'll gain: Android Development, Android Studio, Mobile Development, Java, Object Oriented Programming (OOP), Android (Operating System), Mockups, Java Programming, Data Persistence, Application Deployment, JSON, Web Services, Application Design, Restful API, Mobile Development Tools, Application Development, Software Design Patterns, User Interface (UI) Design, Prototyping, Instagram
Intermediate · Specialization · 3 - 6 Months

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Scala Programming, Data Structures, Distributed Computing, Algorithms, Functional Design, Java Programming, Other Programming Languages, Performance Tuning
Intermediate · Course · 1 - 4 Weeks