# Reading Query Parameters

Input binding hands query parameters to the page as inputs too, or undefined when they're missing, so give each a default with ?? in a computed. Link with routerLink and \[queryParams\], and change them from code with navigate and queryParamsHandling 'merge'.

![Cheat sheet: Reading Query Parameters](https://fsdtrainingmedia.blob.core.windows.net/public/images/2026/11/f9ee7e556920469da15ea888e1ee1924.webp)

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

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