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# init(data:)

Initializes and returns an `NSInputStream` object for reading from a given `NSData` object.

```
init(data: Data)
```

## Parameters

`data`

The data object from which to read. The contents of `data` are copied.

## Return Value

An initialized `NSInputStream` object for reading from `data`.

## Discussion

The stream must be opened before it can be used.

## See Also

[`+  inputStreamWithData:`](/documentation/Foundation/NSInputStream/inputStreamWithData:)

Creates and returns an initialized `NSInputStream` object for reading from a given `NSData` object.


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