Ajax courses can help you learn asynchronous web requests, dynamic content updates, and improved user interfaces. You can build skills in handling JSON data, managing server responses, and optimizing web performance. Many courses introduce tools like jQuery and XMLHttpRequest, that support implementing Ajax techniques and enhancing user experience on websites.

Skills you'll gain: Git (Version Control System), Selenium (Software), Version Control, GitHub, Jenkins, Continuous Integration, CI/CD, Test Automation, Web Development Tools, Browser Compatibility, Test Data, File I/O, Data Access
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Node.JS, JavaScript Frameworks, Web Frameworks, Authentications, MongoDB, Postman API Platform, Restful API, Server Side, Middleware, JSON, Application Programming Interface (API), Web Development Tools, Web Applications, Javascript, Back-End Web Development, API Testing, NoSQL
★ 4.9 (22) · Intermediate · Course · 1 - 3 Months

Scrimba
Skills you'll gain: Javascript, Application Programming Interface (API)
★ 4.9 (11) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: jQuery, Javascript and jQuery, Animations, Debugging, Cascading Style Sheets (CSS), Event-Driven Programming, Responsive Web Design, Web Applications, Interactive Design, HTML and CSS, Interaction Design, Data Validation, Event Monitoring
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Persistence, Retrieval-Augmented Generation, LLM Application, OpenAI API, Full-Stack Web Development, Restful API, Development Environment, Agentic systems, Vector Databases, Large Language Modeling, Data Management, Embeddings, Application Deployment, Data Integration
Intermediate · Course · 1 - 3 Months

Microsoft
Skills you'll gain: Full-Stack Web Development, Application Design, Software Design Documents, React.js, Web Applications, Web Design and Development, Package and Software Management, Web Development, Version Control, Software Documentation, Web Development Tools, Program Development, JavaScript Frameworks, Web Content Accessibility Guidelines, Application Deployment, Frontend Performance, Dashboard Creation, Front-End Web Development, Data Architecture, Cloud Deployment
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Containerization, Node.JS, CI/CD, Kubernetes, MongoDB, Full-Stack Web Development, Back-End Web Development, JavaScript Frameworks, Application Deployment, Continuous Integration, Server Side, Microservices, Frontend Integration, NoSQL, API Design, Software Technical Review, Continuous Deployment, Web Development, Databases, Database Development
★ 4.6 (11) · Advanced · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Angular, HTML and CSS, JavaScript Frameworks, Hypertext Markup Language (HTML), Application Frameworks, Front-End Web Development, Javascript, Software Design Patterns, Java, Web Components, Code Reusability, Web Applications, Full-Stack Web Development, Cascading Style Sheets (CSS), Programming Principles, Web Design, Maintainability, Web Development, UI Components
★ 4.4 (118) · Intermediate · Course · 1 - 4 Weeks

Universidad de Palermo
Skills you'll gain: Autism Spectrum Disorders, Clinical Psychology, Psychiatry, Mental Health Diseases and Disorders, Mental and Behavioral Health, Developmental Disabilities, Disabilities, Activities of Daily Living (ADLs), Cognitive Behavioral Therapy, Behavioral Health, Neurology, Patient Treatment, Behavioral Management, Diagnostic Tests, Psychological Evaluations, Working With Children
★ 4.5 (17) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Gemini, Google Gemini, Multimodal Prompts, Retrieval-Augmented Generation, Data Store, Embeddings, Metadata Management, Image Analysis, Large Language Modeling, Prompt Engineering, Cloud Computing, Artificial Intelligence
★ 3.9 (10) · Intermediate · Project · Less Than 2 Hours

Packt
Skills you'll gain: React Redux, JavaScript Frameworks, Web Development Tools, Frontend Performance, Web Applications, Data Store, Middleware
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: JSON, Application Programming Interface (API), Restful API, Javascript, Web Applications, Hypertext Markup Language (HTML), Servers, Cascading Style Sheets (CSS)
★ 4.8 (15) · Intermediate · Course · 1 - 4 Weeks