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.

Johns Hopkins University
Skills you'll gain: Cascading Style Sheets (CSS), Responsive Web Design, HTML and CSS, Bootstrap (Front-End Framework), Web Design, Web Design and Development, Javascript
★ 4.4 (110) · Mixed · Course · 1 - 4 Weeks
Skills you'll gain: Django (Web Framework), Performance Tuning, Postman API Platform, Restful API, Application Programming Interface (API), Data Validation, Authentications, Frontend Integration, React.js, API Testing, Authorization (Computing), Secure Coding, Object-Relational Mapping, API Design, Scalability, JavaScript Frameworks, JSON, Test Tools, Web Development, Python Programming
★ 4.6 (163) · Advanced · Specialization · 3 - 6 Months

University of California, Davis
Skills you'll gain: SQL, Data Quality, Complex Problem Solving, Data Visualization, JSON, Query Languages, Business Metrics, Business Reporting, Data Validation, Data Cleansing, Data Presentation, Forecasting, Data Analysis, Predictive Analytics, Data Manipulation
★ 4.1 (26) · Intermediate · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Java Programming, Java, Software Development Tools, Application Servers, Web Applications, Development Environment, Java Platform Enterprise Edition (J2EE), Object Oriented Programming (OOP), Application Development, Eclipse (Software), Program Development, Computer Programming, Object Oriented Design, Mobile Development, Programming Principles, Integrated Development Environments, UI Components, Event-Driven Programming, User Interface (UI), Virtual Machines
★ 4.4 (207) · Intermediate · Specialization · 3 - 6 Months

University of Virginia
Skills you'll gain: User Story, HTML and CSS, Prototyping, Model View Controller, Maintainability, Javascript, Cascading Style Sheets (CSS), Debugging, Hypertext Markup Language (HTML), jQuery, Scripting, User Interface (UI), Wireframing, Interactive Design, Javascript and jQuery, Web Design, Web Development Tools, Code Reusability, Web Applications, User Centered Design
★ 4.2 (74) · Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Apache Maven, File I/O, Build Tools, Data Import/Export, Object Oriented Programming (OOP), JSON, Java Programming, Debugging, Object Oriented Design, JUnit, Code Reusability, Software Documentation, Programming Principles, Data Structures, File Systems, Computer Programming, Web Services, File Management, Java, Computer Science
★ 4.5 (197) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Email Automation, Google Workspace, Google Sheets, Stakeholder Communications, Communication Planning, Scripting, Gmail, Stakeholder Management, Project Schedules, Project Management, Javascript
★ 4.5 (131) · Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Full-Stack Web Development, Jest (JavaScript Testing Framework), Application Deployment, Frontend Integration, Web Development Tools, Cloud Deployment, Unit Testing, Data Structures, Server Side, Back-End Web Development, Restful API, Frontend Performance, Application Programming Interface (API), Development Environment, Javascript, Build Tools, Middleware, Front-End Web Development
Beginner · Course · 1 - 3 Months

Skills you'll gain: React.js, ChatGPT, Cascading Style Sheets (CSS), Generative AI, AI Integrations, Development Environment, JavaScript Frameworks, Integrated Development Environments, Web Design and Development, Secure Coding, Node.JS, Javascript, Application Programming Interface (API), Security Controls, Package and Software Management
Beginner · Course · 1 - 3 Months

EDUCBA
Skills you'll gain: Internet Of Things, Advanced Analytics, Big Data, Data Management, Wireless Networks, Predictive Analytics, Applied Machine Learning, Analytics, Water Sustainability, Data-Driven Decision-Making, Sustainable Systems, Environmental Monitoring, Geospatial Information and Technology, Telecommunications, Sustainable Technologies, Machine Controls, Real Time Data, Automation, Data Analysis, Data Collection
★ 4.6 (324) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Graph Theory, Computational Thinking, Data Structures, Algorithms, Problem Solving, Programming Principles, Computer Programming, Theoretical Computer Science, Javascript, Solution Design, Performance Tuning, Memory Management
Intermediate · Specialization · 3 - 6 Months

Board Infinity
Skills you'll gain: HTML and CSS, React.js, Web Applications, Hypertext Markup Language (HTML), Front-End Web Development, JavaScript Frameworks, Web Design and Development, Web Development Tools, UI Components, Javascript, Cascading Style Sheets (CSS), Web Development, User Interface (UI), Development Environment
★ 4.2 (60) · Intermediate · Course · 1 - 4 Weeks