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# setDataSource(_:)

Invoked when the data source for this document has been changed.

```
func setDataSource(_ dataSource: WebDataSource!)
```

## Parameters

`dataSource`

The new data source for the document.

## See Also

  [WebKit Objective-C Programming Guide](https://developer.apple.com/library/archive/documentation/Cocoa/Conceptual/DisplayWebContent/DisplayWebContent.html#//apple_ref/doc/uid/10000164i)



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