Wells Fargo Interview Questions, Process, and Tips

Promises are objects representing the eventual completion or failure of an asynchronous operation.

• Promises are used to handle asynchronous operations in JavaScript.

• They can be in one of three states: pending, fulfilled, or rejected.

• Promises can be chained using .then() to handle success and failure.

• They help avoid callback hell and make code more readable and maintainable.

Encryption on iOS involves using various APIs and libraries to secure data at rest and in transit.

• iOS provides built-in encryption APIs like CommonCrypto for data protection.

• Use Secure Enclave for storing sensitive data like passwords and keys.

• Implement TLS/SSL for secure communication over network.

• Consider using third-party libraries like CryptoSwift for additional encryption functionalities.

CLR stands for Common Language Runtime and CTS stands for Common Type System.

• CLR is the virtual machine component of Microsoft's .NET framework, responsible for managing the execution of .NET programs.

• CTS defines how types are declared, used, and managed in the runtime, ensuring that objects written in different languages can interact seamlessly.

• CLR provides services such as garbage collection, exception handling, and ...read more

Interface is a contract that defines the methods a class must implement, while abstract class can have both implemented and abstract methods.

• Interface can only have abstract methods and constants, while abstract class can have abstract and non-abstract methods.

• A class can implement multiple interfaces but can only inherit from one abstract class.

• Interfaces are used to achieve multiple inheritance in Java, while abstrac...read more