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# member(_:)

Determines whether a given object is present in the set, and returns that object if it is.

```
func member(_ object: Any) -> Any?
```

## Parameters

`object`

An object to look for in the set.

## Return Value

Returns an object equal to `object` if it’s present in the set, otherwise `nil`.

## Discussion

Each element of the set is checked for equality with `object` until a match is found or the end of the set is reached.  Objects are considered equal if <doc://com.apple.documentation/documentation/ObjectiveC/NSObjectProtocol/isEqual(_:)> returns <doc://com.apple.documentation/documentation/Swift/true>.

---

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