> 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/2.5/api/csharp/yarn.compiler.upgrader/yarn.compiler.upgrader.orderedset/yarn.compiler.upgrader.orderedset..ctor-2.md).

# OrderedSet(IEqualityComparer\<T>)

Constructor in [OrderedSet](/2.5/api/csharp/yarn.compiler.upgrader/yarn.compiler.upgrader.orderedset.md)

## Summary

```csharp
public OrderedSet(IEqualityComparer<T> comparer)
```

## Parameters

| Name                                                       | Description |
| ---------------------------------------------------------- | ----------- |
| `System.Collections.Generic.IEqualityComparer<T>` comparer |             |