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.

Cisco Learning and Certifications
Skills you'll gain: Software-Defined Networking, YAML, Network Architecture, Network Protocols, Network Routing, Computer Networking, Data Modeling, Extensible Markup Language (XML), JSON, Automation, Application Programming Interface (API)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Virtual Networking, Open Shortest Path First (OSPF), Network Planning And Design, TCP/IP, Computer Networking, System Monitoring, Wireless Networks, Network Routing, Security Controls, Network Switches, Cloud Infrastructure, Local Area Networks, Puppet (Configuration Management Tool), Wide Area Networks, Virtual Machines, Chef (Configuration Management Tool), Real Time Data, Authentications, Scripting, JSON
Intermediate · Specialization · 1 - 3 Months

University of Washington
Skills you'll gain: Responsive Web Design, Web Design, GitHub, HTML and CSS, Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), Version Control, Web Design and Development, Usability, User Interface and User Experience (UI/UX) Design, User Experience, Javascript, Web Content Accessibility Guidelines, Browser Compatibility, User Story, Front-End Web Development, Web Development, Mobile Development, Semantic Web, Git (Version Control System)
Beginner · Specialization · 1 - 3 Months

Microsoft
Skills you'll gain: Role-Based Access Control (RBAC), Authentications, Secure Coding, ASP.NET, Microsoft Copilot, Data Security, Back-End Web Development, Authorization (Computing), JSON, Identity and Access Management, Data Storage, Application Programming Interface (API), Encryption
Beginner · Course · 1 - 4 Weeks

DeepLearning.AI
Skills you'll gain: Retrieval-Augmented Generation, Unstructured Data, LLM Application, Data Preprocessing, Metadata Management, JSON, Image Analysis, Data Transformation, Document Management, Vision Transformer (ViT)
Beginner · Project · Less Than 2 Hours

Skills you'll gain: Selenium (Software), Test Script Development, Test Automation, Test Case, Software Testing, Cascading Style Sheets (CSS), Application Frameworks, Browser Compatibility, Javascript and jQuery, Web Scraping, Automation, Python Programming, Hypertext Markup Language (HTML)
Intermediate · Course · 1 - 3 Months

Skills you'll gain: TypeScript, Object Oriented Design, Node.JS, Role-Based Access Control (RBAC), Object Oriented Programming (OOP), Webpack, React Redux, Back-End Web Development, React.js, Full-Stack Web Development, Web Development, MongoDB, Front-End Web Development, Javascript, Application Programming Interface (API), Software Design Patterns, API Design, Programming Principles, Software Development, Debugging
Beginner · Specialization · 3 - 6 Months

University of Leeds
Skills you'll gain: Web Design and Development, Web Development, Web Content Accessibility Guidelines, Web Design, Hypertext Markup Language (HTML), Front-End Web Development, Full-Stack Web Development, Data Security, Web Content, Back-End Web Development, Program Development, Cascading Style Sheets (CSS), Javascript, Information Privacy, Computer Architecture
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Responsive Web Design, HTML and CSS, Web Design, Application Deployment, Cascading Style Sheets (CSS), Web Design and Development, Development Environment, Webpack, Animations, Javascript, UI Components, Typography
Beginner · Course · 1 - 3 Months

Skills you'll gain: Extensible Markup Language (XML), Extensible Languages and XML, Cascading Style Sheets (CSS), HTML and CSS, Data Validation, Data Import/Export, Data Mapping, Data Sharing, Javascript, Document Management, Hypertext Markup Language (HTML), Technical Documentation, Interoperability, Data Integrity, Information Architecture, Web Development Tools, Data Management, Scripting, Web Content Accessibility Guidelines
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Dashboard, Data Preprocessing, Data Visualization Software, Real Time Data, Node.JS, Data Analysis, Application Programming Interface (API), Web Development Tools, JSON, Javascript
Intermediate · Guided Project · Less Than 2 Hours

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