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: React.js, Bootstrap (Front-End Framework), JavaScript Frameworks, UI Components, ASP.NET, HTML and CSS, Cascading Style Sheets (CSS), Web Design and Development, Application Programming Interface (API), User Interface (UI), Javascript, Web Development Tools, Code Reusability, Event-Driven Programming, Data Validation
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Extensible Markup Language (XML), Ansible, Infrastructure as Code (IaC), Devops Tools, JSON, Kubernetes, DevOps, Microsoft Visual Studio, Python Programming, Data Structures
Advanced · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Node.JS, MongoDB, Back-End Web Development, Server Side, Full-Stack Web Development, Web Applications, Web Frameworks, Scalability, Web Development, File I/O, Javascript, Operating Systems, NoSQL, Event-Driven Programming, File Systems, Application Programming Interface (API), Software Development Tools, Object-Relational Mapping, Database Management, Package and Software Management
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Containerization, Docker (Software), Application Deployment, Cloud Platforms, Cloud Deployment, Cloud Applications, Kubernetes, Amazon Web Services, Cloud Computing, Development Environment, Continuous Deployment, CI/CD, Continuous Integration, DevOps, Scalability, Test Automation
Intermediate · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Node.JS, JavaScript Frameworks, Web Frameworks, Server Side, Web Applications, Web Servers, Secure Coding, Restful API, Middleware, API Design, Real Time Data, Maintainability
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: jQuery, Ajax, Javascript and jQuery, JSON, Animations, Event-Driven Programming, Debugging, Cascading Style Sheets (CSS), Application Programming Interface (API), Web Applications, Web Development Tools, Responsive Web Design, Javascript, Video Game Development, JavaScript Frameworks, Interactive Design, HTML and CSS, Hypertext Markup Language (HTML), Program Development, Interaction Design
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: React.js, Code Reusability, Javascript, Front-End Web Development, Web Development
Intermediate · Guided Project · Less Than 2 Hours

Scrimba
Skills you'll gain: Unit Testing, Test Case, Debugging, Software Testing, Test Script Development, Development Testing, Test Automation, Quality Assurance
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: React Native, Mobile Development, Responsive Web Design, Cross Platform Development, Mobile Development Tools, UI Components, Application Development, Ajax, User Interface (UI), React.js, JavaScript Frameworks, Data Persistence, Data Store, Data Storage Technologies, Context Management, Development Environment, Javascript, Data Management
Intermediate · Course · 1 - 4 Weeks

Codio
Skills you'll gain: Model View Controller, Test Driven Development (TDD), Restful API, Vue.JS, Full-Stack Web Development, Frontend Integration, JavaScript Frameworks, Web Applications, Application Programming Interface (API), Unit Testing, Server Side, Web Components, Software Design Patterns, Javascript, HTML and CSS, Event-Driven Programming, Cascading Style Sheets (CSS)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Visualization, Plot (Graphics), Data Visualization Software, Statistical Visualization, Interactive Data Visualization, Visualization (Computer Graphics), Javascript, Data Analysis, Microsoft Visual Studio
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Front-End Web Development, Application Programming Interface (API), Event-Driven Programming, Frontend Performance, Development Environment, Data Sharing
Beginner · Course · 1 - 3 Months