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.

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Related Terms

A CSS layout model that provides efficient arrangement of items within a container, handling alignment, distribution, and spacing.

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

Structured Data (Schema.org)

A standardized vocabulary for marking up web content so search engines can understand and display it as rich results.

HTTP headers that control cross-origin resource sharing between different domains, specifying allowed origins, methods, and headers.

API (Application Programming Interface)

A set of rules and protocols that allows different software applications to communicate and exchange data.

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

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