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.
École Polytechnique Fédérale de Lausanne
Skills you'll gain: Scala Programming, Application Design, Software Design, Software Design Patterns, Functional Design, Other Programming Languages, Event-Driven Programming, Functional Testing, Java, Programming Principles, Performance Tuning, Algorithms
Intermediate · Course · 1 - 3 Months

Skills you'll gain: API Testing, Open Web Application Security Project (OWASP), Postman API Platform, Application Programming Interface (API), Security Testing, Penetration Testing, AI Integrations, Restful API, Continuous Monitoring, Application Security, Vulnerability Assessments, Exploit development, Vulnerability Scanning, Test Tools, Software Documentation, Exploitation techniques, Authentications, JSON, Security Management, Docker (Software)
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Javascript, Web Language, Data Persistence, Scripting Languages, Data Storage, Web Development, Programming Principles, Data Structures, Computational Logic, Software Engineering
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: API Testing, Unit Testing, Node.JS, Hardening, Application Performance Management, Authentications, Software Testing, System Monitoring, Secure Coding, Performance Tuning, Back-End Web Development, Postman API Platform, Application Programming Interface (API), Server Side, Application Deployment, Security Testing, Web Development Tools, JSON, MongoDB, GitHub
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: COBOL (Programming Language), Prompt Patterns, Prompt Engineering, Code Review, Code Reusability, Application Lifecycle Management, CI/CD, Agentic systems, Software Technical Review
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Power Platform Architecture & Technical Design, Microsoft Power Platform, Microsoft Power Automate/Flow, Power BI, Azure Synapse Analytics, Enterprise Resource Planning, Microsoft 365, Workflow Management, Data Integration, Data Architecture, Cloud-Based Integration, Business Process Automation, Release Management, Data Lakes, Application Lifecycle Management, Data Access, Data Import/Export, Automation, JSON, Finance
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Mobile Development, Cross Platform Development, Debugging, Application Development, Vibe coding, User Interface (UI), iOS Development, UI Components, Android Jetpack, User Interface and User Experience (UI/UX) Design, Mobile Development Tools, Interactive Design, Android Development, AI powered creativity, User Interface (UI) Design, Apple iOS, Web Applications, Swift Programming, Program Development, Python Programming
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Android Jetpack, Android Development, Mobile Development, Kotlin, UI Components, Interactive Data Visualization, Data Visualization, Code Reusability, Software Design, Animations, User Interface (UI), Interactive Design, User Interface (UI) Design, Software Architecture, Maintainability, JSON, Data Visualization Software, Layout Design, Data Modeling
Intermediate · Course · 1 - 3 Months

The State University of New York
Skills you'll gain: Web Design, Web Design and Development, WordPress, Web Language, HTML and CSS, Browser Compatibility, Web Content, Hypertext Markup Language (HTML), Information Architecture, Web Presence, Web Development, Content Management Systems, Web Analytics and SEO, Responsive Web Design, Cross Platform Development, Content Management
Mixed · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Prompt Engineering, Responsive Web Design, Node.JS, Command-Line Interface, TypeScript, Unit Testing, SQL, HTML and CSS, Web Content Accessibility Guidelines, Typography, Cascading Style Sheets (CSS), React.js, User Interface and User Experience (UI/UX) Design, Hypertext Markup Language (HTML), JSON, Generative AI, Database Design, UI Components, Web Development, Full-Stack Web Development
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: C# (Programming Language), ASP.NET, Maintainability, Object Oriented Design, .NET Framework, JSON, Development Environment, Web Development, Application Frameworks, Restful API, Code Reusability, Microsoft Development Tools, Microsoft Visual Studio, File I/O, Web Applications, UI Components, Object Oriented Programming (OOP), Back-End Web Development, Functional Design, Application Deployment
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Databricks, PySpark, Apache Spark, Data Lakes, Data Pipelines, Data Processing, Data Warehousing, Distributed Computing, Data Architecture, JSON, Data Import/Export, Applied Machine Learning, Data Management, Data Entry, Database Architecture and Administration, Data Collection, SQL, Python Programming, Machine Learning, Artificial Intelligence
Beginner · Course · 1 - 4 Weeks