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How to declare static constant in class scope? such as
class let Constant: Double = 3.1415926 // I know that in class we use class modifier instead of static. 
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Static variables in a class: As the variables declared as static are initialized only once as they are allocated space in separate static storage so, the static variables in a class are shared by the objects. There can not be multiple copies of same static variables for different objects.
Where static and class differ is how they support inheritance: When you make a static property it becomes owned by the class and cannot be changed by subclasses, whereas when you use class it may be overridden if needed.
data segment stores Swift static variables, constants and type metadata.
Static variables are those variables whose values are shared among all the instance or object of a class. When we define any variable as static, it gets attached to a class rather than an object. The memory for the static variable will be allocation during the class loading time.
Swift supports static type properties, including on classes, as of Swift 1.2:
class MyClass { static let pi = 3.1415926 } If you need to have a class variable that is overridable in a subclass, you'll need to use a computed class property:
class MyClass { class var pi: Double { return 3.1415926 } } class IndianaClass : MyClass { override class var pi: Double { return 4 / (5 / 4) } } If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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