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.

Skills you'll gain: Web Applications, Web Development, Leaflet (Software), React.js, User Interface (UI), Application Deployment, Web Development Tools, Application Development, HTML and CSS, OAuth, User Accounts, UI Components, Authentications, Front-End Web Development, Development Environment, User Interface and User Experience (UI/UX) Design, Javascript, Cascading Style Sheets (CSS), Responsive Web Design, Data Validation
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Application Performance Management, Prometheus (Software), System Monitoring, Grafana, Performance Tuning, Event Monitoring, Performance Testing, Performance Management, Server Administration, Web Analytics and SEO, Javascript
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Penetration Testing, Cybersecurity, Metasploit, Cyber Attacks, Application Security, Exploitation techniques, Security Awareness, Malware Protection, Vulnerability Assessments, Javascript, Web Servers
Intermediate · Course · 1 - 3 Months

Scrimba
Skills you'll gain: React.js, UI Components, Web Development Tools, Front-End Web Development, Javascript
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Spring Framework, Version Control, Spring Boot, Hibernate (Java), Object-Relational Mapping, GitHub, Git (Version Control System), Java, Software Documentation, JUnit, Restful API, API Design, Model View Controller, Postman API Platform, User Accounts, Authentications, Object Oriented Programming (OOP), JSON
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Exploitation techniques, Penetration Testing, Secure Coding, Web Development, Web Applications, Full-Stack Web Development, Vulnerability Assessments, Application Security, Angular, Ajax, Javascript
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Restful API, Spring Boot, Full-Stack Web Development, React.js, IntelliJ IDEA, Object-Relational Mapping, Web Services, JavaScript Frameworks, Integrated Development Environments, Front-End Web Development, YAML, Web Applications, Back-End Web Development, Data Access, User Interface (UI), MongoDB, Application Programming Interface (API), UI Components, JSON, Databases
Intermediate · Specialization · 1 - 4 Weeks

Skills you'll gain: Development Environment, Web Applications, Software Development Tools, Web Analytics and SEO
Beginner · Course · 1 - 3 Months

Duke University
Skills you'll gain: LLM Application, Large Language Modeling, Application Programming Interface (API), Restful API, Natural Language Processing, JSON, Scripting, Command-Line Interface, Machine Learning
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Authentications, OAuth, Postman API Platform, Restful API, Application Programming Interface (API), JSON, Test Automation, Data Validation, JUnit, Extensible Markup Language (XML), Selenium (Software), Mockups, Test Tools, Debugging
Intermediate · Course · 1 - 3 Months

Skills you'll gain: React.js, Cascading Style Sheets (CSS), Event-Driven Programming, User Experience Design, User Interface (UI), Front-End Web Development, Restful API, Data Management, JavaScript Frameworks, Javascript, API Design, Web Development
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Transformation, Unstructured Data, JSON, Data Structures, Data Validation
Intermediate · Course · 1 - 4 Weeks