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.

Coursera
Skills you'll gain: Salesforce Development, Salesforce, Systems Integration, Data Integration, Web Services, Application Programming Interface (API), Software Design Patterns, Software Design, Enterprise Architecture, Restful API, Complex Problem Solving, Business Solutions
Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: HTML and CSS, Responsive Web Design, Web Design, Web Design and Development, Front-End Web Development, Web Content Accessibility Guidelines, Bootstrap (Front-End Framework), User Interface (UI) Design, User Interface (UI), Frontend Performance, Cascading Style Sheets (CSS), Usability, Hypertext Markup Language (HTML), Performance Tuning, Typography
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Test Script Development, Test Automation, Test Tools, Verification And Validation, Software Testing, Scenario Testing, Web Development Tools, Test Case, Development Testing, Data Validation, Debugging
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Blockchain, Development Environment, Web Development Tools, Test Tools, Unit Testing, Development Testing, Virtual Machines, Software Testing, Software Development Tools, Data Storage, Application Development, Debugging, Software Configuration Management, Javascript, Cryptographic Protocols, Event-Driven Programming, System Design and Implementation, Transaction Processing
Advanced · Course · 1 - 3 Months

Skills you'll gain: Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), HTML and CSS, Javascript, Web Applications, Front-End Web Development, Program Development, Programming Principles, Computer Programming, Web Development, Data Validation
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, Cloud Deployment, Web Applications, UI Components, Authentications, User Accounts, Database Development, User Interface (UI), User Interface and User Experience (UI/UX) Design, Payment Systems, Development Environment
Intermediate · Course · 3 - 6 Months

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

Board Infinity
Skills you'll gain: React Native, Mobile Development, Responsive Web Design, Cross Platform Development, Mobile Development Tools, UI Components, Application Development, Ajax, User Interface (UI), React.js, JavaScript Frameworks, Data Persistence, Data Store, Data Storage Technologies, Context Management, Development Environment, Javascript, Data Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Test Automation, Test Script Development, Test Data, Test Case, Test Tools, JSON, API Testing, Development Testing, Scenario Testing
Intermediate · Guided Project · Less Than 2 Hours

Packt
Skills you'll gain: Node.JS, MongoDB, Back-End Web Development, Server Side, Full-Stack Web Development, Web Applications, Web Frameworks, Scalability, Web Development, File I/O, Javascript, Operating Systems, NoSQL, Event-Driven Programming, File Systems, Application Programming Interface (API), Software Development Tools, Object-Relational Mapping, Database Management, Package and Software Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: JSON, jQuery, Javascript and jQuery, Web Development Tools, Event-Driven Programming
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: React.js, Bootstrap (Front-End Framework), JavaScript Frameworks, UI Components, ASP.NET, HTML and CSS, Cascading Style Sheets (CSS), Web Design and Development, Application Programming Interface (API), User Interface (UI), Javascript, Web Development Tools, Code Reusability, Event-Driven Programming, Data Validation
Intermediate · Course · 1 - 3 Months