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, HTML and CSS, Web Design and Development, Cascading Style Sheets (CSS), Usability, Web Content Accessibility Guidelines, User Interface and User Experience (UI/UX) Design, User Experience, Javascript, Front-End Web Development, Hypertext Markup Language (HTML), GitHub
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: jQuery, Data Structures, Javascript and jQuery, Programming Principles, Data Management, Microsoft Development Tools
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: C# (Programming Language), Data Modeling, User Interface (UI), jQuery, Microsoft SQL Servers, Microsoft Visual Studio, Application Development, User Interface and User Experience (UI/UX) Design, Data Validation, Application Design, Database Application, Business Reporting, Data Management, SQL, .NET Framework, Data Structures, Javascript and jQuery, Programming Principles, Web Development, Maintainability
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: NumPy, Pandas (Python Package), Image Analysis, Data Manipulation, Matplotlib, Computer Vision, Data Analysis, Interactive Data Visualization, Python Programming, Data Visualization, JSON, Dashboard, Data Visualization Software, Jupyter, Web Applications
Intermediate · Course · 1 - 3 Months
University of Michigan
Skills you'll gain: Responsive Web Design, Wireframing, Bootstrap (Front-End Framework), Cascading Style Sheets (CSS), Web Design, HTML and CSS, Web Design and Development, Browser Compatibility, User Interface (UI), Mobile Development, Prototyping, Hypertext Markup Language (HTML), Javascript
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Server Side, Web Applications, Javascript, JSON, Node.JS, PHP (Scripting Language), Restful API, Application Programming Interface (API), Extensible Markup Language (XML), Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), User Interface (UI)
Beginner · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Amazon DynamoDB, Amazon Web Services, NoSQL, Database Management, Database Design, Data Store, Development Environment, Command-Line Interface, JSON, Application Programming Interface (API), Software Development Tools, Performance Tuning, Scalability
Intermediate · Course · 1 - 3 Months

Northeastern University
Skills you'll gain: Agile Methodology, React.js, User Interface (UI) Design, User Interface and User Experience (UI/UX) Design, Web Content Accessibility Guidelines, Front-End Web Development, Web Development, Wireframing, Web Applications, HTML and CSS, Application Deployment, Responsive Web Design, Javascript
Beginner · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Secure Coding, Cloud Deployment, Database Development, Maintainability, Server Side, Authentications
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Angular, Front-End Web Development, UI Components, HTML and CSS, Responsive Web Design, User Interface (UI), Web Applications, JavaScript Frameworks, Cascading Style Sheets (CSS), User Interface and User Experience (UI/UX) Design, Software Design, TypeScript, Performance Tuning
Intermediate · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Exploratory Data Analysis, Teradata SQL, JSON, Data Integration, Advanced Analytics, Data Cleansing, Text Mining, Data Quality, Data Analysis, Statistical Analysis, Application Programming Interface (API), Database Management, Natural Language Processing
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Ajax, jQuery, JSON, Debugging, JavaScript Frameworks, Application Programming Interface (API), Web Applications, Javascript, Game Design, HTML and CSS, User Interface (UI) Design
Intermediate · Course · 1 - 3 Months