---
title: "filter(matching:equalTo:)"
framework: musickit
role: symbol
role_heading: Instance Method
path: "musickit/musiclibraryrequest/filter(matching:equalto:)-8efya"
---

# filter(matching:equalTo:)

Filters items by a given optional property that matches a specific value.

## Declaration

```swift
mutating func filter<Value>(matching keyPath: KeyPath<MusicItemType.LibraryFilter, Value?>, equalTo value: Value?) where Value : MusicLibraryRequestFilterValueEquatable
```