The construction process is a preparation process for using an instance of aclass, structure, or enumerated type. This process involves setting initialvalues for each property in the instance and performing the necessary preparation and initialization tasks for it.
The Swift constructor uses the init() method.
Vs. Objective-C unlike the constructors in Swift, the constructors in Swift do not need to return values, and their main task is to ensure that the new instance is initialized correctly before it is used for the first time.
Class instances can also clean up memory before the class instance is released by defining a destructor (deinitializer).