SPA

An SPA (single-page application) is a website that keeps the same page loaded for the duration of the user’s session. Instead of a traditional website, in which every link or button that is clicked causes an HTTP request to be sent to the server and a new HTML page to be loaded, there is a single HTML page, and JavaScript changes the page to show different views. React, Angular, and Vue are all JS libraries for making SPAs (often called view libraries).