Explain some design patterns which we normally use during the app development.

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  • Behavioral: Memento, and Observer.
  • Creational: Builder, Factory, and Singleton.
  • Structural: Façade, Adapter, and Decorator.

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What are the various ways to unwrap an optional in swift?
What are the various ways to unwrap an optional in swift? -
  • Guard statement: safe.
  • Force...
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