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.

Scrimba
Skills you'll gain: JSON, UI Components, Application Deployment, 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), Web Applications, Content Management, Cascading Style Sheets (CSS), Application Frameworks, Routing Protocols, Javascript
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: React.js, JavaScript Frameworks, UI Components, Web Development Tools, Web Applications, Data Validation, Network Routing
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: TCP/IP, Network Protocols, Application Programming Interface (API), Ajax, Web Development, General Networking, Web Servers, Web Applications, Javascript, Scalability, Event-Driven Programming, Server Side, Real Time Data, Network Analysis
Intermediate · Course · 1 - 3 Months

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
Skills you'll gain: Continuous Integration, Code Coverage, Code Review, Vulnerability, CI/CD, Application Security, DevSecOps, Vulnerability Assessments, Software Quality Assurance, Maintainability, Software Quality (SQA/SQC), GitHub, Software Installation, System Configuration, Security Management, Data Integration, Quality Improvement, Analysis
Intermediate · Course · 1 - 4 Weeks
Coursera
Skills you'll gain: Scenario Testing, Testability, Software Testing, Integration Testing, Test Case, Test Automation, Acceptance Testing, Test Tools, Regression Testing, Test Planning, Test Execution Engine, Maintainability, Restful API, Security Testing, Test Data, Scalability, Debugging, Authentications, Compliance Reporting, Automation
Intermediate · Course · 1 - 4 Weeks
University of Michigan
Skills you'll gain: Browser Compatibility, Web Content Accessibility Guidelines, Cascading Style Sheets (CSS), HTML and CSS, Web Design, User Interface (UI), Responsive Web Design, Usability, Typography, Javascript
Mixed · Course · 1 - 3 Months
Skills you'll gain: Angular, Front-End Web Development, UI Components, Responsive Web Design, User Interface (UI), Web Applications, JavaScript Frameworks, Cascading Style Sheets (CSS), User Interface (UI) Design, Usability, TypeScript, Scalability, Performance Tuning
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Node.JS, Secure Coding, Application Programming Interface (API), API Design, Authentications, Server Side, MongoDB, Restful API, Full-Stack Web Development, Development Environment, Back-End Web Development, Package and Software Management, Database Development, Databases, Middleware, Authorization (Computing), JSON, User Accounts, Data Modeling
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: MongoDB, Back-End Web Development, NoSQL, Data Transformation, Data Maintenance, Database Design, Databases, Data Cleansing, Data Manipulation, JSON, Development Environment
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Blockchain, Development Environment, Unit Testing, Development Testing, Virtual Machines, Computer Programming Tools, Software Testing, Software Development Tools, Data Storage, Debugging, Javascript, Cryptographic Protocols, System Design and Implementation, Transaction Processing, Payment Systems
Advanced · Course · 1 - 3 Months