Design Patterns - Complete Guide | Technical Documentation…

Design Patterns - Complete Guide

This comprehensive guide covers design patterns: from classic GoF patterns to modern architectural patterns.

Design Patterns are reusable solutions to recurring problems in software design. Patterns aren’t ready-made code; they describe how a problem can be solved, which can then be adapted to specific situations. This guide encompasses the classic Gang of Four (GoF) patterns, contemporary patterns, and principles of software architecture.

Dependencies Should Be on Abstractions, Not Concrete Implementations

Dependency on interfaces

Ensures only one instance of a class exists:

live demo · related simulation● LIVE

Sharing State

Dependent objects receive notifications about changes:

A publish-subscribe mechanism

Frequently asked questions

What is the MVVM (Model-View-ViewModel) design pattern?

MVVM (Model-View-ViewModel) is a software architectural pattern commonly used in user interface development.

How do UI frameworks with data binding work?

UI frameworks utilizing data binding automatically synchronize changes between the model and the view, simplifying application development.

What role does the ViewModel play as an intermediary?

The ViewModel acts as a mediator between the Model and the View, handling user input and updating the UI accordingly.

What is two-way data binding?

Two-way data binding allows changes made in the view to automatically update the underlying model, and vice versa, creating a seamless interaction between the two.

▶ Try it live

Everything above runs in your browser — open Hash Function Avalanche Visualizer and change the parameters while it is running. Nothing is installed, nothing is uploaded, the whole model lives in one tab.

▶ Open Hash Function Avalanche Visualizer simulation