Singleton Design Pattern in iOS

<p>The Singleton design pattern is a software design pattern that restricts the instantiation of a class to one object. This is useful when exactly one object is needed to coordinate actions across the system. The Singleton pattern is one of the simplest and most widely used design patterns.</p> <h1>Example 1:&nbsp;</h1> <p>Imagine you are in a classroom. There is only one teacher in the classroom, and all of the students need to talk to the teacher at some point.<br /> The teacher is like a Singleton object. There is only one instance of the teacher, and all of the students need to use the same instance.</p> <p><a href="https://medium.com/@omar.h.sebaa/singleton-pattern-in-ios-2bf6969ec6c7"><strong>Click Here</strong></a></p>