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.

EDUCBA
Skills you'll gain: Internet Of Things, Big Data, Wireless Networks, Predictive Analytics, Applied Machine Learning, Data-Driven Decision-Making, Environmental Monitoring, Sustainable Technologies, Machine Controls, Real Time Data, Automation, Data Analysis, Data Collection
Beginner · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Java, Java Programming, Eclipse (Software), Object Oriented Programming (OOP), Development Environment, Computer Programming, Program Development, Virtual Machines, Web Applications, Software Installation
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Apache Maven, Data Import/Export, Object Oriented Programming (OOP), JSON, Java Programming, Debugging, JUnit, Java, Software Documentation, Data Structures, Computer Programming, Restful API, Integrated Development Environments, File Management, Programming Principles, Data Validation, Package and Software Management, Network Protocols, Unit Testing, Computer Science
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Flutter (Software), Mobile Development, iOS Development, Apple iOS, User Interface (UI), Android Development, User Interface and User Experience (UI/UX) Design, Application Development, Cross Platform Development, Application Programming Interface (API), Software Development Tools, Development Environment, Debugging, Software Development, JSON
Beginner · Course · 1 - 3 Months

Skills you'll gain: Responsive Web Design, HTML and CSS, Web Design, Cascading Style Sheets (CSS), UI Components, Front-End Web Development, User Interface (UI), Javascript, Mobile Development, Interactive Design, Cross Platform Development
Intermediate · Guided Project · Less Than 2 Hours
Skills you'll gain: Angular, Test Driven Development (TDD), Unit Testing, HTML and CSS, Web Development, Software Testing, Cascading Style Sheets (CSS), Web Applications, Front-End Web Development, JavaScript Frameworks, Integration Testing, Development Environment, UI Components, Javascript, Data Management, Command-Line Interface
Intermediate · Course · 1 - 4 Weeks

Universidad Nacional Autónoma de México
Skills you'll gain: Android Development, Application Deployment, JSON, Web Services, Restful API, Mobile Development, Cloud Applications, Application Programming Interface (API), User Interface (UI), User Interface and User Experience (UI/UX) Design, Animations
Mixed · Course · 1 - 3 Months

Cisco Learning and Certifications
Skills you'll gain: Ansible, Development Environment, Postman API Platform, Restful API, Authentications, YAML, Software Development Tools, Software Development Methodologies, Software-Defined Networking, CI/CD, DevOps, IT Automation, Network Engineering, Network Architecture, Network Administration, Application Programming Interface (API), Scripting, JSON, Data Modeling, Network Protocols
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: HTML and CSS, JSON, Responsive Web Design, Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), Game Design, UI Components, Animations, Algorithms, Debugging
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Open Source Technology, Package and Software Management, Web Development, Linux, Shell Script, Database Design, Ubuntu, Relational Databases, Web Applications, Web Development Tools, Unix Shell, Test Driven Development (TDD), Python Programming, Linux Administration, Databases, Object Oriented Programming (OOP), Scripting Languages, Computer Programming, Javascript, Database Management
Build toward a degree
Beginner · Specialization · 3 - 6 Months
University of Michigan
Skills you'll gain: NoSQL, PostgreSQL, Database Architecture and Administration, Database Systems, Data Store, Scalability, Databases, Database Design, Relational Databases, SQL, Distributed Computing, Cloud Applications, JSON
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Webpack, Search Engine Optimization, Web Development Tools, Web Analytics and SEO, Performance Tuning, Build Tools, Debugging, Front-End Web Development, Test Automation, Development Testing, Performance Testing, Software Development Tools, WordPress, Javascript
Intermediate · Course · 1 - 3 Months