Pass

**Very well done Elias!**

However, you forgot a required feature: select all.

I like your detailed instructions and colours. Your minimal doc-comments are also decent, but would have liked to see more documentation in `hash.rs`. This would enable you to easier reference your work in the future.

[](https://insights.stackoverflow.com/survey/2021#section-top-paying-technologies-top-paying-technologies)

Start by reading hash.rs and the existing project instructions to locate the selection behavior and understand the current documentation. Add the required select-all feature and expand the documentation in hash.rs; done means the feature works and the relevant code is documented.

Written by the indexing model from the issue text.