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.

University of London
Skills you'll gain: JSON, Restful API, Ajax, Javascript, Application Programming Interface (API), Hypertext Markup Language (HTML), Front-End Web Development, Data Structures
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Selenium (Software), Test Script Development, Test Automation, Functional Testing, Test Case, Software Testing, Cascading Style Sheets (CSS), Application Frameworks, Web Development Tools, Javascript and jQuery, Automation, Python Programming, UI Components, Hypertext Markup Language (HTML), File I/O
Intermediate · Course · 1 - 3 Months

Packt
Skills you'll gain: Node.JS, Full-Stack Web Development, Web Applications, Authentications, Server Side, JavaScript Frameworks, Back-End Web Development, Restful API, Middleware, Database Application, Dataflow, Data Validation, NoSQL, TypeScript, Application Programming Interface (API), Object-Relational Mapping, Authorization (Computing), MongoDB, Databases, MySQL
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Version Control, Restful API, Docker (Software), Containerization, Git (Version Control System), Development Environment, Flask (Web Framework), Application Programming Interface (API), Authentications, Application Deployment, Database Management, Database Development, JSON, Object-Relational Mapping, Operational Databases, API Testing, Python Programming, Object Oriented Programming (OOP), Data Structures
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Blockchain, User Interface (UI), Bootstrap (Front-End Framework), User Interface (UI) Design, Development Environment, JavaScript Frameworks, Front-End Web Development, Debugging, Frontend Integration, Web Development Tools, Full-Stack Web Development, Animations, Test Tools, Unit Testing, FinTech, Application Development, Development Testing, Integrated Development Environments, Application Deployment, Other Programming Languages
Intermediate · Specialization · 3 - 6 Months
Coursera
Skills you'll gain: Code Reusability, React.js, JavaScript Frameworks, Web Applications, UI Components, Application Development, User Interface (UI), Front-End Web Development, Javascript
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: jQuery, Code Reusability, Object Oriented Design, Data Structures, Javascript and jQuery, Programming Principles, Web Development Tools, Data Management, Microsoft Development Tools, Computational Logic
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Anthropic Claude, Application Programming Interface (API), LLM Application, JSON, AI Integrations, Generative AI Agents, Agentic systems, Scripting, Token Optimization, Artificial Intelligence, Automation, Development Environment
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Blockchain, Application Deployment, Integrated Development Environments, Development Testing, Web Development Tools, Program Development, Cryptographic Protocols, Javascript, Scripting
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Spring Boot, React.js, Spring Framework, Object-Relational Mapping, Frontend Integration, Restful API, YAML, Data Access, Database Application, Data Persistence, Web Applications, JavaScript Frameworks, Databases, Application Performance Management, Development Environment, Configuration Management, Command-Line Interface
Intermediate · Course · 1 - 4 Weeks

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

Scrimba
Skills you'll gain: UI Components, React.js, Javascript, JavaScript Frameworks
Intermediate · Course · 1 - 4 Weeks