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: Development Environment, Software Development, Integrated Development Environments, Code Review, Software Development Tools, Open Source Technology, Javascript, AI Workflows, Debugging
Intermediate · Guided Project · Less Than 2 Hours

LearnQuest
Skills you'll gain: Teradata SQL, Exploratory Data Analysis, SQL, Data Modeling, Database Design, Database Administration, Database Architecture and Administration, Database Management, Database Management Systems, Data Store, JSON, Data Integration, Data Architecture, Advanced Analytics, Data Warehousing, Data Cleansing, Text Mining, Data Analysis, Business Intelligence, Data-Driven Decision-Making
Beginner · Specialization · 1 - 3 Months

Scrimba
Skills you'll gain: JSON, UI Components, Application Deployment, Web Frameworks, Web Design and Development, Front-End Web Development, Information Architecture, Web Development Tools, Full-Stack Web Development, Web Development, HTML and CSS, Hypertext Markup Language (HTML), Content Management, Cascading Style Sheets (CSS), File Systems, Javascript
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Frontend Integration, Javascript and jQuery, Front-End Web Development, Application Programming Interface (API), Event-Driven Programming, Development Environment
Beginner · Course · 1 - 3 Months

Skills you'll gain: TypeScript, Webpack, React Redux, Frontend Integration, React.js, Application Programming Interface (API), Web Development Tools, Front-End Web Development, Restful API, UI Components, JavaScript Frameworks, Build Tools, Context Management, Event-Driven Programming, Data Validation, Javascript, Web Development, Software Development
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: JUnit, Restful API, Software Design, JSON, Software Testing
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Merchandising, Web Applications, E-Commerce, Product Lifecycle Management, Business Technologies, Application Development, Case Studies, Javascript, Scalability, Customer experience improvement
Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: JavaScript Frameworks, Development Environment, Web Development Tools, Javascript, Web Applications, UI Components, Software Architecture, Dataflow, Event-Driven Programming
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Salesforce Object Query Language (SOQL), Salesforce Development, Simple Object Access Protocol (SOAP), Systems Integration, Salesforce, Restful API, Web Services, Data Integration, Software Development Tools, Application Programming Interface (API), Real Time Data, Test Tools, Development Environment, Postman API Platform, JSON, Authentications, Web Components
Beginner · Course · 1 - 3 Months

The Hong Kong University of Science and Technology
Skills you'll gain: Server Side, Restful API, Ajax, Node.JS, Web Applications, Web Servers, Web Development, Model View Controller, Javascript, JavaScript Frameworks, PHP (Scripting Language), Authentications, JSON, Hypertext Markup Language (HTML), Software Architecture, Application Development, Real Time Data, Data Storage
Intermediate · Course · 1 - 3 Months

Skills you'll gain: React.js, JavaScript Frameworks, UI Components, Web Applications, Data Validation, Front-End Web Development, Routing Protocols, Verification And Validation
Intermediate · Course · 1 - 4 Weeks