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January 15, 2018 16:55
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| //if the Person.house fails, it wil not get to the street | |
| //which can either return a null or the street | |
| let myStreet = Person.house?.street | |
| //to make sure we get a value, we can include the if let like below | |
| if let myStreet = Person.house?.street { | |
| print(myStreet) | |
| } |
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