Matching data type in Swift

Question

I'm using BeaconKit to detect near beacons around.

I want to check if the beacon detected is of type AltBeacon. My code is showing an error because of the matching expression I'm using.

if beacon.beaconType == AltBeacon {
     print("Detected an AltBeacon")
}

Here is the error message I'm getting

Binary operator == cannot be applied to operands of type Int' and AltBeacon.Type

What can I use instead so I can correct my matching expression please ! Thank you

Possible duplicate of [Checking if an object is a given type in Swift](https://stackoverflow.com/questions/24091882/checking-if-an-object-is-a-given-type-in-swift) — wootage, Oct 24 '19 at 13:58

score 1 · Accepted Answer · 2019-10-24T14:45:24.593

1

Have you tried

if beacon.beaconType is AltBeacon {
   print("Detected an AltBeacon")
}

or instead, you can check

if let beacon.beaconType as? AltBeacon {
   print("Detected an AltBeacon")
} else {
// handle
}

edited Oct 24 '19 at 14:45

answered Oct 24 '19 at 14:29

Actually according to the source code both `if` expressions will always evaluate to `false`. – vadian Oct 24 '19 at 14:46

score 1 · Answer 2 · answered Oct 24 '19 at 14:40

The error is clear. beaconType is an Int. It cannot be compared with anything else but an Int

Two possible solutions:

Figure out the integer value of AltBeacon (2 is just an example) and compare
```
if beacon.beaconType == 2 { ...
```
As AltBeacon is a subclass of Beacon check the type of the instance
```
if beacon is AltBeacon { ...
```

2 Answers2