Swift Language Functions Methods
Example
Instance methods are functions that belong to instances of a type in Swift (a class, struct, enumeration, or protocol). Type methods are called on a type itself.
Instance Methods
Instance methods are defined with a func declaration inside the definition of the type, or in an extension.
class Counter {
var count = 0
func increment() {
count += 1
}
}
The increment() instance method is called on an instance of the Counter class:
let counter = Counter() // create an instance of Counter class
counter.increment() // call the instance method on this instance
Type Methods
Type methods are defined with the static func keywords. (For classes, class func defines a type method that can be overridden by subclasses.)
class SomeClass {
class func someTypeMethod() {
// type method implementation goes here
}
}SomeClass.someTypeMethod() // type method is called on the SomeClass type itself
