steipete

# The trick is to link the DeviceSupport folder from the beta to the stable version.
# sudo needed if you run the Mac App Store version. Always download the dmg instead... you'll thank me later :)

# Support iOS 15 devices (Xcode 13.0) with Xcode 12.5:
sudo ln -s /Applications/Xcode-beta.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport/15.0 /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport

# Then restart Xcode and reconnect your devices. You will need to do that for every beta of future iOS versions

# (A similar approach works for older versions too, just change the version number after DeviceSupport)

mlvea

let netWorthOfBillionaires = ["Bill Gates":78.5,"Carlos Slim Helu":71,"Warren Buffett":70.9]

let possibleNetWorth = netWorthOfBillionaires["Tim Cook"]

//Type of the possibleNetWorth is inferred to Double?

//Know what! Tim cook is not a billionair yet. His net worth is aroung $400 million
//Thats why he is not in our list. But who knows. He might becomes a billionair

if (possibleNetWorth != nil){