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# hasMemberInPlane(_:)

Returns a Boolean value that indicates whether the receiver has at least one member in a given character plane.

```
func hasMemberInPlane(_ thePlane: UInt8) -> Bool
```

## Parameters

`thePlane`

A character plane.

## Return Value

<doc://com.apple.documentation/documentation/Swift/true> if the receiver has at least one member in `thePlane`, otherwise <doc://com.apple.documentation/documentation/Swift/false>.

## Discussion

This method makes it easier to find the plane containing the members of the current character set. The Basic Multilingual Plane (BMP) is plane `0`.

---

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