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iOS

Posted by kelake
kelake
4,223 Points

when we declare stored properties, we don't give it any initial values ...

In the video Pasan stated:

Well, when we declare stored properties, we don't give it any initial values so 5:44 the compiler cannot infer what the type should be. 5:47

But that is not entirely true is it? We could set default values as shown below:

struct Town {
    var population = 5_422
    var numberOfStoplights = 4
}

1 Answer

Harshita Arora
Harshita Arora
6,736 Points

Hello,

Yes, you could set default values for the stored properties in your classes or structs. However, we assign default values to a stored property only if we are sure that the value would occur most of the times, to avoid having to type the same value over and over again. The convention is to declare the data type of the property in the class or struct. Now, if you create an instance of the struct Town, Xcode autocomplete will show two possibilities, the default (with no properties), and the one with both the properties within a parenthesis. By clicking on the latter, you can edit the values in them. Remember, they can only be integer values.
Hope that helps.