Web Development Intermediate

What is SPA (Single Page Application)?

A web application that loads a single HTML page and dynamically updates content without full page reloads.

SPAs load once and use JavaScript to render content dynamically. Navigation happens client-side using the History API, creating a smooth, app-like experience without page refreshes. Data is fetched via AJAX/fetch API calls.

Popular SPA frameworks include React, Vue.js, and Angular. Challenges include SEO (solved by SSR/SSG), initial load time (code splitting), and browser history management. SPAs communicate with backends via REST or GraphQL APIs.

Learn More About This Topic

HTML & CSS Fundamentals

Related reading

JavaScript ES6+ Modern Features

Related reading

JavaScript Fundamentals

Related reading

Related Terms

The second major version of HTTP that improves performance through multiplexing, header compression, and server push.

A high-performance RPC framework using Protocol Buffers and HTTP/2 for efficient service-to-service communication.

A JavaScript file that runs in the background, enabling offline support, push notifications, and background sync for web apps.

A typed superset of JavaScript that adds static type checking, interfaces, and advanced IDE support to JavaScript development.

Software that sits between the request and response in a web application, performing processing like authentication or logging.

Web Font Optimization

Techniques for loading custom fonts efficiently to minimize their impact on page load performance and visual stability.

View All Web Development Terms →