What are frameworks and how to use them in web development

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Frameworks are development tools that provide reusable components and guidelines to facilitate the creation of applications. With them, the developer can focus only on the specific logic of the project, without having to write the entire code base from scratch.

These tools act as an organizational structure, combining libraries, best practices and standards, facilitating the creation of projects in an organized and efficient way. Frameworks are used both in the front-end (user interface) and in the back-end (data structure and logic).

Modern backend frameworks often adopt the Model-View-Controller (MVC) design pattern , which organizes code into layers, making development more flexible and scalable.

Model-View-Controller (MVC) pattern
MVC is an architectural pattern that organizes software development into finland whatsapp database main components, each with a specific responsibility: Model (responsible for data and business rules), View (responsible for the user interface) and Controller (responsible for managing interactions between the View and the Model ).

Operating example:

Imagine you are shopping online:

You select a product in the interface ( View ) .
The Controller processes your action and asks the Model for information about the product .
The Model returns the necessary data to the Controller , which sends it back to the View , updating the screen with the information of the chosen product .
This approach helps to clearly organize the code, reducing project complexity and making it easier to maintain and add new features.

For example, in MVC-based frameworks, developers can update the user interface ( View ) without changing the business logic ( Model ), ensuring flexibility and scalability.

Differences between framework and library
A library is a set of reusable functions, classes, or modules that provide a solution to specific tasks . The developer chooses when and how to use the library by explicitly calling its functions or methods.

A framework is a more comprehensive structure that defines a complete architecture for developing an application. It coordinates the execution flow of the program and determines how the components should be organized, leaving it up to the developer to fill in the gaps with application-specific code.

What is the function of a framework?
The main function of a framework is to provide a development structure that simplifies the work of developers by capturing common decisions across projects and presenting ready-made solutions to recurring problems. This includes tasks such as database manipulation, user authentication, data validation, and creating visual interfaces.