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 Colorado Boulder
Skills you'll gain: Network Analysis, Social Network Analysis, Marketing Analytics, Unstructured Data, Semantic Web, Statistical Methods, Text Mining, Data Structures, JSON, Natural Language Processing, Data Visualization Software, Python Programming
Build toward a degree
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Node.JS, Server Side, MongoDB, Back-End Web Development, Restful API, Web Applications, Web Development, JavaScript Frameworks, Database Management, Application Programming Interface (API), Software Architecture, NoSQL, Web Servers, Authentications, Application Security, Middleware, Performance Tuning, Authorization (Computing), Scalability
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Merchandising, Product Assortment, E-Commerce, Web Applications, Scalability, Web Design and Development, Technology Solutions, Application Programming Interface (API), Javascript
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: JavaScript Frameworks, Frontend Performance, Real Time Data
Beginner · Course · 1 - 3 Months

Skills you'll gain: Extensible Markup Language (XML), Ajax, Extensible Languages and XML, Web Design, Java Platform Enterprise Edition (J2EE), Data Validation, Web Applications, Scripting, Javascript and jQuery, Web Development, Android Development, Hypertext Markup Language (HTML), Middleware, Model View Controller, Hibernate (Java), Visualization (Computer Graphics), Interoperability, Java, Cascading Style Sheets (CSS), Mobile Development
Beginner · Specialization · 3 - 6 Months

Scrimba
Skills you'll gain: Cascading Style Sheets (CSS), React.js, HTML and CSS, Front-End Web Development, UI Components, Maintainability, Web Development
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Application Programming Interface (API), GraphQL, API Design, Restful API, Postman API Platform, Ajax, OAuth, Frontend Integration, Software Documentation, Authentications, Debugging, Real Time Data, Systems Integration, JSON, Authorization (Computing), Version Control
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Ansible, Puppet (Configuration Management Tool), Software-Defined Networking, Network Administration, Security Awareness, Chef (Configuration Management Tool), Information Systems Security, Virtual Private Networks (VPN), JSON, Authentications, Computer Networking, Authorization (Computing), Automation, Configuration Management, Application Programming Interface (API)
Intermediate · Course · 1 - 4 Weeks

NIIT
Skills you'll gain: React.js, Front-End Web Development, Systems Development Life Cycle, Application Development, User Interface and User Experience (UI/UX) Design, UI Components, User Flows, Unit Testing, Data Validation, Javascript
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Flutter (Software), User Interface (UI) Design, User Interface (UI), JSON, Object Oriented Programming (OOP), Mobile Development, Data Structures, Data Modeling, Debugging
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Node.JS, Full-Stack Web Development, Front-End Web Development, Server Side, Application Deployment, Back-End Web Development, JavaScript Frameworks, Web Applications, UI Components, Authentications, User Accounts, Database Development, User Interface (UI), Payment Systems
Intermediate · Course · 3 - 6 Months

University of Colorado Boulder
Skills you'll gain: Unsupervised Learning, Unstructured Data, Applied Machine Learning, Marketing Analytics, Text Mining, Deep Learning, Model Evaluation, Machine Learning, JSON, Data Processing, Natural Language Processing, Data Preprocessing, Exploratory Data Analysis, Data Visualization, Python Programming
Build toward a degree
Intermediate · Course · 1 - 3 Months