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# isReady

A Boolean value that indicates whether the reader session is started and ready to use.

```
var isReady: Bool { get }
```

## Discussion

As soon as a reader session is successfully activated, radio-frequency discovery polling begins. When a tag is detected, [`readerSession:didDetectTags:`](/documentation/CoreNFC/NFCReaderSessionDelegate/readerSession:didDetectTags:) is called.

---

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