# Group a list by key in Rell · Learn Chromia

> Write Rell code that groups a list of objects into a map keyed by a shared value.

Source: https://chromia.com/learn/associate-function/

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# Group a list by key in Rell

Write Rell code that groups a list of objects into a map keyed by a shared value.

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1. [01Link objects together by key](https://chromia.com/learn/associate-function/introduction/)