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# base64Encoding()

Initializes a Base64 encoded string from the string.

```
func base64Encoding() -> String
```

## Return Value

A Base-64 encoded string.

## Discussion

This method is equivalent to calling [`base64EncodedString(options:)`](/documentation/Foundation/NSData/base64EncodedString(options:)) with no options specified.

### Special Considerations

Although this method was only introduced publicly for iOS 7, it has existed since iOS 4; you can use it if your application needs to target an operating system prior to iOS 7.

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