Router
Routers are used to replace a component on a route placeholder, without refreshing the page.
Example:
./src/app/app-component.html
./src/app/app-component.js
When this example is implemented, the web page would have two hyperlinks—Home and Tab. Clicking on those would not redirect the user to a new page, but load that component in the existing page—thereby increasing your web app's speed and efficiency.