In software engineering, a design pattern is a general repeatable solution to a commonly occurring problem in software design. A design pattern isn't a finished design that can be transformed directly into code. It is a description or template for how to solve a problem that can be used in many different situations.
The design patterns can be broadly classified into 3 categories -
Of all the design patterns in iOS, MVC (Model-View-Controller) is considered to be of utmost importance.
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