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.

Northeastern University
Skills you'll gain: Cascading Style Sheets (CSS), Responsive Web Design, Web Design, HTML and CSS, Web Content Accessibility Guidelines, User Interface (UI), Hypertext Markup Language (HTML), Front-End Web Development, User Interface and User Experience (UI/UX) Design, Javascript, Usability, Web Applications, Semantic Web, Data Validation
Beginner · Course · 1 - 3 Months

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

Skills you'll gain: Multimodal Prompts, ChatGPT, OpenAI, JSON, Large Language Modeling, Python Programming, Text Mining, Data Validation, Unstructured Data, Data Analysis
Intermediate · Course · 1 - 3 Months

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

Skills you'll gain: Apache Kafka, Spring Boot, Real Time Data, Java, Unit Testing, Restful API, JSON, Integration Testing, Distributed Computing, Scalability, Debugging
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Flutter (Software), JSON, User Interface (UI), User Interface and User Experience (UI/UX) Design, Database Development, Databases, Interactive Data Visualization, Debugging, Application Development, Mobile Development, Data Storage Technologies, Application Programming Interface (API), 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, Web Applications, Application Programming Interface (API), Unit Testing, Server Side, Software Design Patterns, Javascript, HTML and CSS, Cascading Style Sheets (CSS)
Intermediate · Course · 1 - 4 Weeks

Skillshare
Skills you'll gain: Web Development, Browser Compatibility, Semantic Web, Web Content Accessibility Guidelines, Object Oriented Programming (OOP), Scalability
Beginner · Specialization · 1 - 3 Months
Skills you'll gain: JUnit, Test Automation, Unit Testing, Software Testing, Continuous Integration, Performance Testing, Selenium (Software), Quality Assurance, Integration Testing, Test Case, IT Automation, CI/CD, Scripting, Application Performance Management, Debugging, Java, Network Performance Management
Intermediate · Course · 1 - 4 Weeks

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

Skills you'll gain: React.js, Cascading Style Sheets (CSS), JavaScript Frameworks, UI Components, Front-End Web Development, User Interface (UI), Application Frameworks, Application Programming Interface (API), Web Development Tools, Restful API
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Cascading Style Sheets (CSS), HTML and CSS, Angular, Hypertext Markup Language (HTML), Responsive Web Design, Front-End Web Development, Bootstrap (Front-End Framework), Web Content Accessibility Guidelines, Web Design, Web Design and Development, React.js, UI Components, Web Analytics and SEO, JavaScript Frameworks, Semantic Web, Performance Tuning, Browser Compatibility, User Interface and User Experience (UI/UX) Design, Web Applications, Web Development
Beginner · Specialization · 1 - 3 Months