What design patterns does laravel use?

Laravel uses several design patterns to achieve reusable, flexible, and easy-to-maintain code: Singleton pattern: Ensures there is only one instance of a class. Factory method pattern: used to create different types of objects. Builder pattern: Build complex objects step by step. Adapter pattern: Connecting incompatible interfaces or classes. Decorator Pattern: Add new behavior to existing objects. Strategy pattern: dynamically assign algorithms to objects. Observer pattern: Notifies other objects when an object's state changes.

Design Patterns in Laravel

Laravel makes extensive use of design patterns to achieve reusable, flexible, and easy-to-maintain code. The following are some of the main design patterns used:

Singleton pattern

• is used to ensure that there is only one instance of a class, no matter how many objects are created.
• The singleton pattern in Laravel is used for various services, such as App and Cache.

Factory method pattern

• Provides an interface for creating objects of different types without specifying a specific class name.
• Factory method pattern in Laravel is used to create models, migrations and model queryers.

Builder Pattern

• Build a complex object incrementally without specifying all the details at once.
• The builder pattern in Laravel is used to build queries, validators, and email messages.

Adapter pattern

• Allows incompatible interfaces or classes to work together.
• The Adapter pattern in Laravel is used to connect to different database systems such as MySQL, PostgreSQL, and SQLite.

Decorator Pattern

• Dynamicly add new behavior to an existing object without changing its structure.
• The decorator pattern in Laravel is used to extend Eloquent models, routes, and validators.

Strategy pattern

• Defines a set of algorithms and allows them to be dynamically assigned to objects.
• The strategy pattern in Laravel is used to implement authorization and authentication.

The Observer pattern

• defines dependencies between objects so that other objects are notified when changes occur in one object.
• The Observer pattern in Laravel is used to handle events and queues.

These are just some of the major design patterns used in Laravel. They provide the foundation for writing reusable, maintainable, and extensible code.

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