---
title: "ReusableContent"
description: "A utility function to mark a composition as supporting recycling. If the [key] changes the
composition is replaced by a new composition (as would happen for [key]) but reusable nodes that
are emitted by [ReusableComposeNode] are reused."
type: "composable"
---

<div class='type'>Composable Function</div>


<a id='references'></a>

<div class='sourceset sourceset-common'>Common</div>


```kotlin
@Composable
public inline fun ReusableContent(key: Any?, content: @Composable () -> Unit)
```


A utility function to mark a composition as supporting recycling. If the `key` changes the
composition is replaced by a new composition (as would happen for `key`) but reusable nodes that
are emitted by `ReusableComposeNode` are reused.

#### Parameters

| | |
| --- | --- |
| key | the value that is used to trigger recycling. If recomposed with a different value the composer creates a new composition but tries to reuse reusable nodes. |
| content | the composable children that are recyclable. |