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.

LearnQuest
Skills you'll gain: Exploratory Data Analysis, Teradata SQL, JSON, Data Integration, Advanced Analytics, Data Cleansing, Text Mining, Data Quality, Data Analysis, Statistical Analysis, Application Programming Interface (API), Database Management, Natural Language Processing
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Extract, Transform, Load, Data Transformation, Data Integration, Web Scraping, Data Pipelines, JSON, Object Oriented Programming (OOP), Extensible Markup Language (XML), Data Modeling, Application Programming Interface (API), Relational Databases
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Chart.js, Responsive Web Design, Bootstrap (Front-End Framework), Dashboard, HTML and CSS, Data Visualization, Web Design, Web Applications, User Interface (UI), User Interface (UI) Design, Web Development
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: React.js, JavaScript Frameworks, UI Components, Web Development Tools, Web Applications, Data Validation, Network Routing
Intermediate · Course · 1 - 4 Weeks

The Hong Kong University of Science and Technology
Skills you'll gain: Server Side, Restful API, Ajax, Node.JS, Full-Stack Web Development, Web Applications, Web Servers, Web Development, Model View Controller, Javascript, PHP (Scripting Language), Application Programming Interface (API), Authentications, JSON, Hypertext Markup Language (HTML), Software Architecture, Real Time Data
Intermediate · Course · 1 - 3 Months

Skills you'll gain: TypeScript, UI Components, Javascript, Maintainability, Web Applications, Front-End Web Development, Web Design and Development, Cascading Style Sheets (CSS), Object Oriented Programming (OOP), Scalability
Beginner · Course · 1 - 4 Weeks

Northeastern University
Skills you'll gain: Web Design and Development, Responsive Web Design, HTML and CSS, Front-End Web Development, Cascading Style Sheets (CSS), Web Development Tools, React.js, User Interface (UI), Javascript, Web Servers, Semantic Web, Command-Line Interface
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Cascading Style Sheets (CSS), HTML and CSS, Web Design and Development, Front-End Web Development, Animations, Javascript, Application Deployment, Interactive Design, Web Content Accessibility Guidelines, User Interface (UI), Maintainability
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Full-Stack Web Development, Responsive Web Design, Email Automation, Order Management, UI Components, Data Validation, Search Engine Optimization, Web Applications, JavaScript Frameworks, Back-End Web Development, Authentications, User Interface (UI), React.js, E-Commerce, PostgreSQL, Web Development Tools, Dashboard, TypeScript, Marketing Automation, Product Improvement
Intermediate · Specialization · 3 - 6 Months

Scrimba
Skills you'll gain: Web Applications, Web Language, Javascript, UI Components, Front-End Web Development, Web Development, Object Oriented Programming (OOP), Cascading Style Sheets (CSS), Programming Principles
Intermediate · Course · 1 - 4 Weeks

NIIT
Skills you'll gain: React.js, Front-End Web Development, Systems Development Life Cycle, Application Development, User Interface and User Experience (UI/UX) Design, UI Components, User Flows, Unit Testing, Data Validation, Javascript
Intermediate · Course · 1 - 4 Weeks

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