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# resourceValues(forKeys:fromBookmarkData:)

Returns the resource values for properties identified by a specified array of keys contained in specified bookmark data.

```
class func resourceValues(forKeys keys: [URLResourceKey], fromBookmarkData bookmarkData: Data) -> [URLResourceKey : Any]?
```

## Parameters

`keys`

An array of names of URL resource properties. In addition to the standard, system-defined resource properties, you can also request any custom properties that you provided when you created the bookmark. See the [`bookmarkData(options:includingResourceValuesForKeys:relativeTo:)`](/documentation/Foundation/NSURL/bookmarkData(options:includingResourceValuesForKeys:relativeTo:)) method for details.

`bookmarkData`

The bookmark data from which you want to retrieve resource values.

## Return Value

A dictionary of the requested resource values contained in `bookmarkData`.

## See Also

[`URLResourceKey`](/documentation/Foundation/URLResourceKey)

Keys that apply to file system URLs.


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