> For the complete documentation index, see [llms.txt](https://docs.yarnspinner.dev/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.yarnspinner.dev/3.1/api/csharp/yarn.saliency/yarn.saliency.bestleastrecentlyviewedsaliencystrategy.md).

# BestLeastRecentlyViewedSaliencyStrategy

Class in [Yarn.Saliency](/3.1/api/csharp/yarn.saliency.md)

Inherits from `System.Object`

## Summary

A content saliency strategy that returns the first of the best, least-recently seen choices from the provided options.

```csharp
public class BestLeastRecentlyViewedSaliencyStrategy : IContentSaliencyStrategy
```

## Remarks

This strategy stores information about the number of times each piece of content has been seen in the provided `Yarn.Saliency.BestLeastRecentlyViewedSaliencyStrategy.VariableStorage` .

## Constructors

| Name                                                                                                                                                                                                            | Description                                                                                                                                                               |
| --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| [BestLeastRecentlyViewedSaliencyStrategy(IVariableStorage)](/3.1/api/csharp/yarn.saliency/yarn.saliency.bestleastrecentlyviewedsaliencystrategy/yarn.saliency.bestleastrecentlyviewedsaliencystrategy..ctor.md) | Initalises a new instance of the [BestLeastRecentlyViewedSaliencyStrategy](/3.1/api/csharp/yarn.saliency/yarn.saliency.bestleastrecentlyviewedsaliencystrategy.md) class. |

## Methods

| Name                                                                                                                                                                                                         | Description                                                                                                                                                      |
| ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| [ContentWasSelected(ContentSaliencyOption)](/3.1/api/csharp/yarn.saliency/yarn.saliency.bestleastrecentlyviewedsaliencystrategy/yarn.saliency.bestleastrecentlyviewedsaliencystrategy.contentwasselected.md) | Called by Yarn Spinner to indicate that a piece of salient content has been selected, and this system should update any state related to how it selects content. |
| [QueryBestContent(IEnumerable)](/3.1/api/csharp/yarn.saliency/yarn.saliency.bestleastrecentlyviewedsaliencystrategy/yarn.saliency.bestleastrecentlyviewedsaliencystrategy.querybestcontent.md)               | Chooses an item from content that is the most appropriate (or *salient* ) for the user's current context.                                                        |