# Query Parameters in Angular: an overview

Values that are optional, such as a filter, a search or a page number, go in the query string: /products?categoryId=2&page=3. They need no route of their own, and the page shows with or without them. A route parameter says which item; a query parameter says how to show the page.

![Cheat sheet: Query Parameters in Angular: an overview](https://fsdtrainingmedia.blob.core.windows.net/public/images/2026/11/45c9cba2ead34814a71a864ec666ec7c.webp)

- Category: Angular
- Level: Journeyman
- Tags: angular, Query Parameter (angular)
- Updated: November 3, 2026

Source: https://www.ask-codey.com/cheat-sheets/query-parameters-in-angular-an-overview-cheat-sheet