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.

Packt
Skills you'll gain: PostgreSQL, Operational Databases, SQL, Database Management, Transaction Processing, Data Maintenance, Database Systems, Stored Procedure, Performance Tuning, Databases, Database Architecture and Administration, Query Languages, Data Migration, PL/SQL, Relational Databases, Database Development, Data Management, JSON, Database Management Systems, Operating System Administration
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Web Development Tools, File Management, Application Deployment, React.js
Intermediate · Course · 1 - 3 Months

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

Skills you'll gain: Frontend Integration, Web Development Tools, Authorization (Computing), Event-Driven Programming, Code Reusability
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Blockchain, Web Development Tools, Development Environment, FinTech, Software Development Tools, Transaction Processing, Web Development, Programming Principles, Program Development, Web Applications, Node.JS, Emerging Technologies, Scalability, Other Programming Languages, Javascript, Application Deployment, Computer Programming, Market Dynamics, Verification And Validation
Beginner · Course · 1 - 3 Months

Skills you'll gain: Vue.JS, Unit Testing, JavaScript Frameworks, Test Tools, Software Architecture, Software Testing, Development Testing, UI Components, Web Applications, Front-End Web Development, Web Development, Maintainability, Javascript, HTML and CSS, Hypertext Markup Language (HTML), Data Validation, Data Store
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Apple Xcode, iOS Development, Apple iOS, Swift Programming, Data Persistence, JSON, Application Deployment, Mobile Development, User Interface (UI), Web Services, UI Components, Application Development, User Interface (UI) Design, Programming Principles, Application Programming Interface (API), Application Design, Data Structures
Beginner · Course · 1 - 3 Months

Skills you'll gain: PostgreSQL, Operational Databases, SQL, Database Management, Transaction Processing, Database Systems, Databases, Relational Databases, Database Management Systems, Data Management, Database Architecture and Administration, Database Development, Query Languages, JSON, Performance Tuning, Database Design, Data Access, Data Integrity
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Apple iOS, Apple Xcode, iOS Development, Core Data (Software), Secure Coding, Application Deployment, Scalability, Swift Programming, Apple software proficiency, Back-End Web Development, Performance Tuning, Application Security, Debugging, Knowledge of Apple Software, Build Tools, Application Performance Management, Application Programming Interface (API), Encryption, JSON, Memory Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: JUnit, Unit Testing, Software Quality Assurance, Development Testing, Integrated Development Environments, Software Testing, Quality Assurance, Test Case, Verification And Validation, Java, Software Development Tools, Java Programming, Performance Tuning, Debugging, Performance Testing
Intermediate · Guided Project · Less Than 2 Hours

NIIT
Skills you'll gain: React.js, Frontend Integration, Front-End Web Development, Systems Development Life Cycle, Application Lifecycle Management, Program Development, Application Development, JavaScript Frameworks, User Interface and User Experience (UI/UX) Design, UI Components, User Flows, Code Reusability, Test Case, Unit Testing, Data Validation, Javascript
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: TypeScript, Restful API, API Design, Full-Stack Web Development, PostgreSQL, Application Programming Interface (API), Object-Relational Mapping, Secure Coding, Web Applications, AI Integrations, JavaScript Frameworks, SQL, Front-End Web Development, React.js, Web Development Tools, Relational Databases, Database Management, Server Side, Javascript, Artificial Intelligence
Beginner · Course · 3 - 6 Months