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 Washington
Skills you'll gain: Responsive Web Design, Web Design, User Experience Design, Cascading Style Sheets (CSS), Web Content Accessibility Guidelines, User Experience, Javascript, Front-End Web Development, Web Development, Hypertext Markup Language (HTML), GitHub
Beginner · Course · 1 - 4 Weeks

Edureka
Skills you'll gain: API Design, Application Programming Interface (API), Data Validation, Restful API, Application Frameworks, Performance Tuning, Software Versioning, Django (Web Framework), Software Documentation, Middleware, Node.JS, Application Performance Management, Scalability, JSON, Spring Boot, Test Automation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: TypeScript, UI Components, React.js, Web Applications, Front-End Web Development, Javascript, Development Environment, Programming Principles, Data Management, Debugging
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Apple iOS, Apple Xcode, iOS Development, Core Data (Software), Secure Coding, Application Deployment, Scalability, Swift Programming, Performance Tuning, Application Security, Debugging, API Gateway, Application Performance Management, Application Programming Interface (API), Performance Testing, Encryption, JSON
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Angular, Responsive Web Design, Front-End Web Development, React.js, HTML and CSS, UI Components, Web Design and Development, JavaScript Frameworks, Web Development, TypeScript, Javascript
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Restful API, Full-Stack Web Development, React.js, Web Services, Spring Boot, Front-End Web Development, Web Applications, Back-End Web Development, MongoDB, UI Components, JSON, NoSQL, Application Development, Data Access
Intermediate · Course · 1 - 4 Weeks

Pearson
Skills you'll gain: Ansible, Software-Defined Networking, Computer Networking, JSON, Automation, Infrastructure as Code (IaC), Network Architecture, Application Programming Interface (API), Network Infrastructure, Network Monitoring, Network Switches, Network Planning And Design, Extensible Markup Language (XML), Configuration Management
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: API Design, JavaScript Frameworks, Query Languages, Business Logic, Software Architecture
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Node.JS, Back-End Web Development, User Accounts, Server Side, Swift Programming, Full-Stack Web Development, Real Time Data, Apple iOS, Web Applications, Restful API, Authentications, Data Management, JSON, UI Components, User Interface (UI), Data Security, Debugging
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Apple Xcode, Apple iOS, Swift Programming, JSON, Application Deployment, Mobile Development, User Interface (UI), Application Development, User Interface (UI) Design, Application Programming Interface (API), Data Store, Data Structures
Beginner · Course · 1 - 3 Months

Skills you'll gain: WordPress, Ajax, Content Management Systems, Web Development, PHP (Scripting Language), Database Development, MySQL, Javascript and jQuery, Cascading Style Sheets (CSS)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Full-Stack Web Development, Flask (Web Framework), Web Applications, Real Time Data, Web Development, Restful API, Application Development, Application Programming Interface (API), Back-End Web Development, API Design, Python Programming, Server Side, JSON
Intermediate · Course · 1 - 4 Weeks