S. Design Patterns https://www.youtube.com/watch?v=tv-_1er1mWI

What is the purpose of the singleton design pattern?

• To simplify the API for a complex system

• To allow for multiple instances of a class

• To ensure only one instance of a class is created

• To create subclasses with shared functionality

How does the prototype pattern differ from traditional inheritance?

• It creates a hierarchy of code based on classes

• It relies on static class properties

• It allows for dynamic method chaining

• It inherits functionality from an object rather than a class

What is the main advantage of using the builder pattern?

• It simplifies the API for a complex system

• It allows for step-by-step object creation

• It replaces the need for conditional logic

• It provides a facade for low-level details

In the context of software design patterns, what does a facade pattern aim to achieve?

• Implement a push-based system for data updates

• Create a flat prototype chain for inheritance

• Provide a middleman for object communication

• Simplify the API by hiding low-level details

When would you use the proxy pattern in programming?

• To replace a target object with a substitute

• To create a single instance of a class

• To traverse through a collection of objects

• To delegate object creation to a factory function

What is the purpose of the iterator pattern in modern languages?

• To intercept data changes and update the UI

• To traverse through a collection of objects

• To replace conditional logic with switch statements

• To create a one-to-many relationship between objects

How does the observer pattern differ from the iterator pattern?

• It provides abstractions for data traversal

• It allows for dynamic method delegation

• It is a push-based system for event broadcasting

• It simplifies object creation with method chaining

What role does a mediator pattern play in software development?

• Implements a one-to-many relationship for data updates

• Provides a simplified API for complex systems

• Acts as a middleman to coordinate communication between objects

• Handles object creation through a factory function

How does the state pattern help in making an object's behavior predictable?

• By providing different functionality based on internal state

• By intercepting data changes and updating the UI

• By simplifying the API for a complex system

• By creating a hierarchy of code based on classes

What is a key advantage of recognizing and applying software design patterns?

• To create complex hierarchies of code

• To level up as a programmer and solve problems effectively

• To memorize the syntax of programming languages

• To implement algorithms from stack overflow