Angular Typescript Single Page Application (SPA) Tutorial

single page application vs multiple page application
A Single-page application (SPA), also known as a single-page interface (SPI), is a web application or web site that fits on a single web page with the goal of providing a more fluid user experience.

A single-page application (SPA) is a website that re-renders its content in response to navigation actions (e.g. clicking a link) without making a request to the server to fetch new HTML.