# Programming Phoenix LiveView B3.0 P276: Assertion in age group filter not working for me

**URL:** <https://forum.devtalk.com/t/programming-phoenix-liveview-b3-0-p276-assertion-in-age-group-filter-not-working-for-me/8678>\
**Category:** PragProg Customers\
**Tags:** book-programming-phoenix-liveview, question\
**Created:** [10 April 2021 14:34 UTC](https://forum.devtalk.com/t/programming-phoenix-liveview-b3-0-p276-assertion-in-age-group-filter-not-working-for-me/8678 "2021-04-10T14:34:11Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![wyrdforge](https://forum.devtalk.com/user_avatar/forum.devtalk.com/wyrdforge/32/2523_2.png) [@wyrdforge](https://forum.devtalk.com/u/wyrdforge)\
**Post date:** [11 April 2021 09:08 UTC](https://forum.devtalk.com/t/programming-phoenix-liveview-b3-0-p276-assertion-in-age-group-filter-not-working-for-me/8678/3 "2021-04-11T09:08:05Z")

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@SophieDeBenedetto Thank you for your explanation and the great job you do with the book, in general. All the small (sometimes more confusing, than helpful) pieces of information I gathered before now fall into place and I finally get the big picture, what live views and components are all about and how to put them to work efficiently 😃

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