What are Single Page Applications (SPA)?

Single Page Applications (SPAs) are web applications that load a single HTML page and dynamically update the content as the user interacts with the app. The app runs primarily on the client-side (in the user's web browser) and uses JavaScript to dynamically update the content without requiring the page to be reloaded from the server. This allows for a more seamless user experience, similar to that of a native mobile app. Popular JavaScript frameworks and libraries such as Angular, React, and Vue.js are often used to build SPAs.