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.

Scrimba
Skills you'll gain: React.js, Routing Protocols, Authentications, Frontend Performance, Authorization (Computing), Web Applications, Query Languages, Web Development
Intermediate · Course · 1 - 3 Months

Packt
Skills you'll gain: Node.JS, JavaScript Frameworks, Restful API, Application Programming Interface (API), React.js, Authentications, OAuth, Server Side, Back-End Web Development, Databases, Cloud Hosting, User Interface (UI), Application Deployment
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Restful API, Data Mapping, Scalability, Information Architecture, Data Management, Data Structures, Query Languages, JSON, Data Import/Export, Big Data
Beginner · Course · 1 - 4 Weeks

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

Skills you'll gain: Angular, Bootstrap (Front-End Framework), JavaScript Frameworks, Authentications, Web Applications, Authorization (Computing), Javascript and jQuery, Web Design and Development, Web Components, HTML and CSS, TypeScript, Web Development Tools, Responsive Web Design, UI Components, Model View Controller, Data Validation, Routing Protocols, Software Testing
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Rust (Programming Language), Command-Line Interface, Package and Software Management, Programming Principles, Secure Coding, Software Development, Computer Programming, Debugging
Intermediate · Guided Project · Less Than 2 Hours

Board Infinity
Skills you'll gain: CI/CD, Jenkins, Docker (Software), Spring Boot, Kubernetes, Configuration Management, Containerization, Scalability, Software Documentation, Application Deployment, Cloud Deployment, Java, Spring Framework, API Gateway, Back-End Web Development, JUnit, Application Programming Interface (API), Secure Coding, Java Programming, React.js
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: React.js, Server Side, JavaScript Frameworks, Node.JS, Web Development Tools, Web Development, Web Applications, Software Engineering
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Responsive Web Design, Web Design, HTML and CSS, Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), Bootstrap (Front-End Framework), UI Components, Javascript and jQuery, Front-End Web Development, Usability, Web Development, Browser Compatibility, User Interface (UI), Interactive Design, Javascript, Creative Design, Web Design and Development, Typography, Web Analytics and SEO, Wireframing
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Node.JS, JavaScript Frameworks, Authentications, MongoDB, Postman API Platform, Restful API, Server Side, Middleware, JSON, Web Applications, Javascript, Back-End Web Development
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Version Control, GitLab, Continuous Integration, Software Versioning, CI/CD, Git (Version Control System), Software Development Tools, Javascript
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Application Deployment, React.js, Event-Driven Programming, User Interface (UI), Web Applications, Application Development, Web Development, Cascading Style Sheets (CSS), Javascript, JSON, Debugging
Intermediate · Course · 1 - 4 Weeks