> For the complete documentation index, see [llms.txt](https://docs.wem.io/platform/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.wem.io/platform/wemreference/keywords/lists/of.md).

# Of

{% hint style="info" %}
The `OF` keyword selects values from a list or concept set.

This function is SQL compatible. For more information about SQL compatibility, see our [documentation](/platform/wemreference/sql-compatibility.md).
{% endhint %}

{% hint style="success" %}
Returns an array of values.
{% endhint %}

<details>

<summary><mark style="color:blue;"><code>expression</code></mark><code> OF </code><mark style="color:blue;"><code>list</code></mark></summary>

<mark style="color:blue;">`([Products.Name]`</mark>` ``OF`` `<mark style="color:blue;">`[Products])`</mark>\
\&#xNAN;*=> list of product names.*

`First(`<mark style="color:blue;">`[Products.Name]`</mark>` ``OF`` `<mark style="color:blue;">`[Products])`</mark>\
\&#xNAN;*=> the Name of the first product in the Productlist*

</details>

<details>

<summary><mark style="color:blue;"><code>expression</code></mark><code> OF </code><mark style="color:blue;"><code>concept_set</code></mark></summary>

`concept:'ImageFile' of getchildren('Images')`\
\&#xNAN;*=> the Image File Properties (in this case, the filenames as collection) of the children-concepts within 'Images'.*

</details>


---

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