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.

Codio
Skills you'll gain: Model View Controller, Test Driven Development (TDD), Restful API, Vue.JS, Full-Stack Web Development, Frontend Integration, Web Applications, Application Programming Interface (API), Unit Testing, Server Side, Software Design Patterns, Back-End Web Development, Javascript, HTML and CSS, Event-Driven Programming, Cascading Style Sheets (CSS)
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: React Native, Mobile Development, Responsive Web Design, Cross Platform Development, iOS Development, Mobile Development Tools, User Interface (UI) Design, UI Components, Application Development, 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: Data Visualization Software, Data Visualization, Statistical Visualization, Ggplot2, Plot (Graphics), R (Software), R Programming, Scatter Plots, Data Collection, Graphing, Data Analysis, Data Presentation, Data Manipulation, Data Access, Data Import/Export, Regression Analysis, Data Structures, Development Environment, Software Installation
Intermediate · Course · 1 - 4 Weeks

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

Skills you'll gain: TypeScript, Javascript, React.js, UI Components, Application Development, Web Development
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: React.js, HTML and CSS, Frontend Performance, Application Deployment, Web Development, Hypertext Markup Language (HTML), Front-End Web Development, Web Development Tools, Full-Stack Web Development, JavaScript Frameworks, UI Components, Performance Tuning, Cascading Style Sheets (CSS), Javascript, Server Side, GitHub, Version Control, Git (Version Control System)
Intermediate · Course · 1 - 3 Months

Pearson
Skills you'll gain: Ansible, Software-Defined Networking, IT Automation, JSON, Automation, Infrastructure as Code (IaC), Application Programming Interface (API), Network Infrastructure, Restful API, Network Planning And Design, Extensible Languages and XML, Extensible Markup Language (XML), Configuration Management, Package and Software Management
Beginner · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Cloud Deployment, Debugging, Google Cloud Platform, Application Deployment, Cloud Development, JavaScript Frameworks, Web Development Tools, Node.JS, Cloud Applications, Serverless Computing, Program Development, Functional Testing, Integrated Development Environments, Software Development, Computer Programming Tools, Microsoft Visual Studio
Beginner · Project · Less Than 2 Hours

Google Cloud
Skills you'll gain: Data Loss Prevention, Personally Identifiable Information, Information Privacy, JSON, Data Access, Data Security, Cloud Security, Cloud API, Google Cloud Platform, Cloud Storage
Beginner · Project · Less Than 2 Hours

Skills you'll gain: Merchandising, E-Commerce, Web Applications, Scalability, Business Technologies, Technology Solutions, Application Frameworks, Application Development, Systems Integration, Javascript
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Software Design Patterns, Computational Thinking, Software Design, Algorithms, Theoretical Computer Science, Software Development, Data Structures, Computer Programming, Problem Solving, Computer Science, Machine Learning Methods
Advanced · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Model Context Protocol, Vector Databases, Agentic Workflows, Tool Calling, Agentic systems, AI Workflows, Google Gemini, Server Side, Gemini, Generative AI Agents, AI Integrations, Embeddings, Node.JS, Retrieval-Augmented Generation, Large Language Modeling, Web Development, PostgreSQL, Data Processing, Data Modeling, Javascript
Intermediate · Course · 1 - 3 Months