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.

Skills you'll gain: Full-Stack Web Development, Responsive Web Design, UI Components, Data Validation, JavaScript Frameworks, Back-End Web Development, Authentications, User Interface (UI), PostgreSQL, Web Applications, Web Development Tools, React.js, Object-Relational Mapping, Development Environment, Databases, User Accounts
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Object Oriented Programming (OOP), Javascript, Software Design Patterns, Data Management, Data Structures, Prototyping, Web Development, Performance Tuning
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Cascading Style Sheets (CSS), HTML and CSS, Angular, Hypertext Markup Language (HTML), Responsive Web Design, Front-End Web Development, Bootstrap (Front-End Framework), Web Content Accessibility Guidelines, Web Design, Web Design and Development, React.js, UI Components, Web Analytics and SEO, JavaScript Frameworks, Semantic Web, Performance Tuning, Browser Compatibility, User Interface and User Experience (UI/UX) Design, Web Applications, Web Development
Beginner · Specialization · 1 - 3 Months

Coursera
Skills you'll gain: Vue.JS, Web Development Tools, Web Applications, Front-End Web Development, HTML and CSS, Javascript, Microsoft Visual Studio
Intermediate · Guided Project · Less Than 2 Hours

Politecnico di Milano
Skills you'll gain: Socioeconomics, Epidemiology, Crisis Management, Social Determinants Of Health, Health Technology, Health Policy, Social Sciences, Infectious Diseases, Public Health, Network Analysis, Mental Health, Health Informatics, Health Care, Surveys, Data-Driven Decision-Making, Data Science, Artificial Intelligence
Beginner · Course · 1 - 3 Months

Skills you'll gain: JavaScript Frameworks
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Application Deployment, UI Components, React.js, User Interface (UI) Design, JavaScript Frameworks, Cascading Style Sheets (CSS), Web Development Tools, Front-End Web Development, Content Management Systems, Responsive Web Design, Amazon S3
Intermediate · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Blockchain, User Interface and User Experience (UI/UX) Design, Cryptography, Secure Coding, Application Security, Web Development Tools, React Redux, Encryption, User Experience Design, Key Management, Application Design, Cryptographic Protocols, Application Development, Web Applications, Software Development Tools, Legal Technology, Front-End Web Development, Vulnerability Assessments, Data Security, Development Testing
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Spring Boot, Configuration Management, API Gateway, JUnit, Java Programming, Java, Application Design, Test Tools, Unit Testing, Service Oriented Architecture, Software Design Patterns
Advanced · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: UI Components, JavaScript Frameworks, Web Frameworks, Event-Driven Programming, Data Import/Export, Web Applications, Front-End Web Development, Javascript, Web Development
Intermediate · Course · 1 - 4 Weeks
University of Michigan
Skills you'll gain: Relational Databases, Data Visualization Software, Databases, MySQL, Database Design, Database Systems, SQL, Database Management Systems, Database Management, Query Languages, Object Oriented Programming (OOP), Data Storage, Data Processing, Web Scraping, Python Programming, Data Collection, Display Devices
Mixed · Course · 1 - 3 Months

University of Virginia
Skills you'll gain: Model View Controller, Debugging, Software Design, User Interface and User Experience (UI/UX) Design, User Interface (UI), UI Components, Web Applications, Algorithms, JSON, User Story, Javascript, Event-Driven Programming, Automation
Beginner · Course · 1 - 4 Weeks