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I applied via Company Website and was interviewed in Jul 2020. There was 1 interview round.
I applied via Walk-in and was interviewed before Sep 2023. There were 2 interview rounds.
Serialisation in API is the process of converting data into a format that can be easily transmitted over a network.
Serialisation is used to convert complex data structures into a format that can be easily transmitted over a network.
It involves converting objects or data structures into a stream of bytes that can be sent over a network.
JSON and XML are commonly used formats for serialising data in APIs.
Serialisation is ...
Codable is a protocol in Swift that allows for easy encoding and decoding of data types to and from external representations.
Codable protocol is used to convert custom data types to and from external representations such as JSON, plist, etc.
It requires the types to conform to Encodable and Decodable protocols.
Codable protocol provides default implementations for encoding and decoding.
Example: struct Person: Codable { v...
MVVM is an architectural design pattern that separates the user interface code from the business logic and data model.
MVVM stands for Model-View-ViewModel
Model represents the data and business logic
View displays the UI elements and interacts with the user
ViewModel acts as a mediator between the Model and View, handling user inputs and updating the Model
MVVM helps in achieving separation of concerns and making the code
Classes are reference types, while structs are value types in Swift.
Classes are reference types, meaning they point to the same instance in memory when assigned to a new variable.
Structs are value types, meaning they create a new copy when assigned to a new variable.
Classes support inheritance, while structs do not.
Classes can have deinitializers, while structs cannot.
Example: class Person { var name: String } vs struc
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Struct is value type while Class is reference type in Swift. Structs are passed by value while Classes are passed by reference.
Structs are ideal for small data types like coordinates, colors, etc.
Classes are ideal for larger data types like view controllers, network managers, etc.
Structs are immutable by default while Classes are mutable.
Structs cannot inherit from other types while Classes can.
Structs are stack alloca
Objective-C is the older language used for iOS development, while Swift is the newer, more modern language.
Objective-C is a superset of C with Smalltalk-style messaging syntax.
Swift is more concise and easier to read than Objective-C.
Swift is safer due to its optionals and type interference features.
Objective-C has been around longer and has a larger codebase, but Swift is becoming more popular.
Many developers prefer S...
I applied via Naukri.com and was interviewed before Oct 2023. There was 1 interview round.
Local data is managed using Core Data framework in iOS development.
Use Core Data framework to create, read, update, and delete local data.
Utilize entities, attributes, and relationships to model the data.
Implement fetch requests to retrieve data based on specific criteria.
Use NSManagedObject subclasses to represent data objects.
Utilize NSPersistentContainer to manage the Core Data stack.
Dynamic UI like Amazon can be created using a combination of responsive design, data-driven content, and user personalization.
Utilize responsive design principles to ensure the UI adapts to different screen sizes and devices.
Implement data-driven content to display relevant information based on user preferences and behavior.
Use user personalization techniques such as recommendations, personalized product suggestions, a...
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