IOS Team Lead Interview Questions and Answers

Associate types are a way to create a relationship between two types in Swift.

• Associate types are defined using the 'associatedtype' keyword.

• They are used in protocols to define a placeholder type that will be specified by the conforming type.

• The conforming type can provide its own concrete type for the associated type.

• This allows protocols to be more flexible and reusable.

• For example, a protocol for a container type can have an associated type for the type of elements it con...read more

Dependency Injection is a design pattern where the dependencies of an object are provided externally rather than being created internally.

• Dependency Injection helps in achieving loose coupling between classes.

• It allows for easier testing and maintenance of code.

• There are three types of Dependency Injection: Constructor Injection, Setter Injection, and Interface Injection.

• Example: In iOS development, we can use Dependency Injection to inject dependencies like network clients, ...read more

Generics in Swift allow you to write flexible and reusable code by creating functions, classes, and structures that can work with any type.

• Generics enable you to write code that can be used with different types, without duplicating code.

• You can define generic functions, types, and protocols to work with a wide range of types.

• Generics are particularly useful when working with collections, such as arrays and dictionaries.

• They allow you to write generic algorithms that can opera...read more

Protocols in Swift define a blueprint of methods, properties, and other requirements that a class, struct, or enum must adopt.

• Protocols are used to define a set of rules or capabilities that a type must conform to.

• They allow for code reuse and provide a way to define common behavior across different types.

• A type can adopt multiple protocols, enabling it to conform to multiple sets of rules.

• Protocols can require properties, methods, initializers, and associated types.

• They can ...read more