React JS courses can help you learn component-based architecture, state management, and routing. You can build skills in creating interactive user interfaces, optimizing performance, and managing application state with tools like Redux. Many courses also cover testing frameworks such as Jest and React Testing Library, enabling you to ensure your applications are robust and reliable.

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Scala Programming, User Interface (UI), Data Processing, Heat Maps, Interactive Data Visualization, Real Time Data, Big Data, Visualization (Computer Graphics), Geospatial Information and Technology, Geospatial Mapping, Data Manipulation, Data Transformation, Apache Spark, Spatial Data Analysis
Mixed · Course · 1 - 3 Months

Scrimba
Skills you'll gain: TypeScript, Event-Driven Programming, Javascript, Pseudocode, Data Persistence, Computational Thinking, Angular, Web Development, Web Applications, Vue.JS, Data Import/Export, Application Development, Debugging, Algorithms, React.js, JSON, Node.JS, Unit Testing, Web Development Tools, JavaScript Frameworks
Beginner · Specialization · 3 - 6 Months

Scrimba
Skills you'll gain: TypeScript, Node.JS, Web Development Tools, React.js, Server Side, Javascript, Data Structures, Web Development, Data Validation, Web Design, Computer Programming
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Bootstrap (Front-End Framework), Browser Compatibility, Responsive Web Design, Web Design and Development, Cascading Style Sheets (CSS), Front-End Web Development, UI Components, React.js, Web Applications, Hypertext Markup Language (HTML)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Integrated Development Environments, Microsoft Visual Studio, AI Enablement, Test Driven Development (TDD), Software Development Tools, GitHub, Debugging, HTML and CSS, User Interface (UI), Cascading Style Sheets (CSS), Software Installation
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Mobile Development, React Native, Application Development, User Story, Flutter (Software), User Interface and User Experience (UI/UX) Design, User Interface (UI), Data Persistence, Figma (Design Software), Application Deployment, UI Components, Application Programming Interface (API), Software Development, GitHub
Advanced · Course · 1 - 3 Months

American Psychological Association
Skills you'll gain: Decision Making, Behavioral Economics, Public Policies, Diversity Awareness, Compassion, Sociology, Culture, Psychology, Cultural Diversity, Mental Health, Resilience, Critical Thinking, Human Development, Behavioral Health, Personal Development, Social Sciences, Empathy, Mindfulness, Interpersonal Communications, Relationship Building
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Docker (Software), Containerization, Application Deployment, Command-Line Interface, Development Environment, Nginx, Computing Platforms, Software Installation, Node.JS, Virtual Machines, React.js
Beginner · Course · 1 - 3 Months

Skills you'll gain: Blockchain, Application Deployment, Integrated Development Environments, Development Testing, Application Development, Web Applications, Javascript
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Pseudocode, Responsive Web Design, Cascading Style Sheets (CSS), Computational Thinking, Front-End Web Development, React.js, Debugging, HTML and CSS, Algorithms, Interviewing Skills, UI Components, JavaScript Frameworks, Programming Principles, LinkedIn, Jest (JavaScript Testing Framework), Web Development, Web Development Tools, Javascript, Professional Development, Software Development
Intermediate · Specialization · 1 - 3 Months

Board Infinity
Skills you'll gain: Bootstrap (Front-End Framework), UI Components, Full-Stack Web Development, JavaScript Frameworks, Web Applications, Web Components, Database Management, Software Development Tools, Software Architecture, Development Environment, Software Testing, NoSQL, Web Servers, Application Frameworks, Application Security, Authentications, Middleware, Performance Tuning, Semantic Web, Authorization (Computing)
Beginner · Specialization · 1 - 3 Months

Board Infinity
Skills you'll gain: Angular, Node.JS, Full-Stack Web Development, HTML and CSS, JavaScript Frameworks, User Interface (UI), Application Deployment, Application Frameworks, Back-End Web Development, Front-End Web Development, Hypertext Markup Language (HTML), MongoDB, User Interface (UI) Design, Web Design, Middleware, Bootstrap (Front-End Framework), jQuery, Javascript, Databases, Cascading Style Sheets (CSS)
Intermediate · Specialization · 1 - 3 Months