MVP (Model-View-Presenter), MVC (Model-View-Controller) and MVVM (Model-View-ViewModel) are all design patterns in software development, which are used to organize code structure and realize the interface between user interface and business logic. Decoupling. These design patterns make the code easier to maintain, extend, and test. Here is a brief explanation of the three modes:
MVP（Model-View-Presenter）：
Model: The data model, responsible for handling the application's business logic and data storage.
View: User interface for displaying data and receiving user operations.
Presenter: The bridge between View and Model, responsible for handling View events, passing user operations to Model, and updating the data returned by Model to View.
In the MVP pattern, there is no direct connection between the View and the Model, and the communication is performed through the Presenter. This design helps reduce the coupling between View and Model, making the code easier to maintain and test.
MVC（Model-View-Controller）：
Model: The data model, which is also responsible for handling the business logic and data storage of the application.
View: User interface for displaying data and receiving user operations.
Controller: The controller is used to receive View events, process user operations, and update Model and View.
In the MVC mode, the communication between the View and the Controller is relatively close. When the user interacts with the View, the Controller will update the Model and return the result to the View. This pattern is widely used in many frameworks, but in some complex scenarios, the interaction between View and Controller may become complicated.
MVVM（Model-View-ViewModel）：
Model: The data model, which is also responsible for handling the business logic and data storage of the application.
View: User interface for displaying data and receiving user operations.
ViewModel: An abstract View model that converts Model data into data that View can display.
The MVVM pattern connects View and ViewModel through data binding technology, so that data changes in ViewModel can be automatically updated to View, and vice versa. This design allows developers to focus more on the implementation of business logic without having to pay attention to the synchronization between View and Model. MVVM is widely used in some modern front-end frameworks (such as Angular, Vue, etc.).
In summary, all three design patterns aim to improve the maintainability, extensibility, and testability of your code, but their implementation and focus are slightly different. Developers can choose the appropriate design pattern according to project requirements and technical background.