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[swift/en] describe convenience initializers (#4836)

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Edoardo La Greca
2024-02-10 14:37:32 +01:00
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@@ -679,6 +679,9 @@ class Rect: Shape {
// A simple class `Square` extends `Rect` // A simple class `Square` extends `Rect`
class Square: Rect { class Square: Rect {
// Use a convenience initializer to make calling a designated initializer faster and more "convenient".
// Convenience initializers call other initializers in the same class and pass default values to one or more of their parameters.
// Convenience initializers can have parameters as well, which are useful to customize the called initializer parameters or choose a proper initializer based on the value passed.
convenience init() { convenience init() {
self.init(sideLength: 5) self.init(sideLength: 5)
} }