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.

Board Infinity
Skills you'll gain: CI/CD, Jenkins, Docker (Software), Spring Boot, Kubernetes, Configuration Management, Containerization, Scalability, Software Documentation, Cloud Deployment, Java, API Design, Spring Framework, API Gateway, Back-End Web Development, JUnit, Java Programming, Application Deployment, Application Programming Interface (API), React.js
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Restful API, Model View Controller, ASP.NET, OAuth, Web Development, Application Programming Interface (API), .NET Framework, Web Services, Authentications, Unit Testing, Back-End Web Development, C# (Programming Language), Web Applications, Object-Relational Mapping, Application Security, Authorization (Computing), Operational Databases, Data Access, Cloud Computing, Computer Programming
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Restful API, API Design, API Testing, Spring Boot, Authentications, Test Automation, JSON, Application Programming Interface (API), Test Script Development, Application Deployment, Spring Framework, Object-Relational Mapping, Test Case, Software Quality Assurance, Business Logic, Back-End Web Development, Software Engineering, Data Modeling, Java Programming, Java
Beginner · Specialization · 1 - 3 Months

Scrimba
Skills you'll gain: Cascading Style Sheets (CSS), HTML and CSS, Front-End Web Development, Javascript, Responsive Web Design, Maintainability
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Network Analysis, Unsupervised Learning, Social Network Analysis, Supervised Learning, Unstructured Data, Marketing Analytics, Deep Learning, Scikit Learn (Machine Learning Library), Machine Learning, Tensorflow, Text Mining, Data Analysis, Model Evaluation, Transfer Learning, Predictive Modeling, Semantic Web, JSON, Statistical Methods, Data Manipulation, Data Structures
Build toward a degree
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Model Evaluation, OpenAI API, Data Preprocessing, OpenAI, Large Language Modeling, Real Time Data, Data Manipulation, Generative AI, Python Programming, Unstructured Data, Performance Metric, Machine Learning, JSON
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Node.JS, Restful API, Application Programming Interface (API), Back-End Web Development, Microsoft Visual Studio, Web Applications, Javascript, Application Development
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Full-Stack Web Development, IntelliJ IDEA, Spring Boot, React.js, Restful API, Integrated Development Environments, Object-Relational Mapping, Web Development Tools, Back-End Web Development, Web Applications, Application Frameworks, Command-Line Interface, Data Access
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Selenium (Software), GitHub, Git (Version Control System), Version Control, CI/CD, File I/O, Object Oriented Programming (OOP), Test Automation, JUnit, Test Data, Unit Testing, Test Case, Regression Testing, Web Development Tools, Test Script Development, Software Testing, Javascript, Browser Compatibility, Scripting, Computer Programming
Beginner · Specialization · 3 - 6 Months

Board Infinity
Skills you'll gain: Restful API, ASP.NET, .NET Framework, JavaScript Frameworks, Frontend Integration, Secure Coding, Middleware, React.js, Application Frameworks, Object-Relational Mapping, Model View Controller, Web Applications, Web Development, Authentications
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Jest (JavaScript Testing Framework), Unit Testing, Test Case, React.js, API Testing, Test Driven Development (TDD), Software Testing, Mockups, Javascript
Intermediate · Guided Project · Less Than 2 Hours

LearnQuest
Skills you'll gain: Restful API, Web Services, Java Platform Enterprise Edition (J2EE), Software Design, Java, Application Programming Interface (API), API Design, JSON, Web Applications, Software Architecture
Beginner · Course · 1 - 4 Weeks