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In Django projects, understanding the relationships between your models is essential for designing and maintaining your application. While Django’s ORM makes it easy to define models and their relationships, visualizing these relationships can help you better understand your database schema.In this lesson, we will:Use django-extensions to generate a .dot file for your Django models.Visualize the..

In this lesson, we’ll explore the sizeof operator in C++. This operator is used to determine the size (in bytes) of a variable, data type, or entire array. It's important to understand that sizeof does not directly give the number of elements in an array but rather the total memory size. To calculate the number of elements, you need to divide the total size of the array by the size of a single e..

In this blog post, we’ll explore grouping in CSS, a powerful technique to apply the same styles to multiple selectors like headers, classes, and IDs. Grouping helps reduce redundancy and keeps your CSS clean. We’ll also learn how to style one of the grouped elements differently by creating a new class or ID.HTML StructureHere’s the HTML structure for this lesson. Don’t forget to link the CSS fil..

In this tutorial, we will explore how to send and receive video frames over a network using Python sockets. We will break down both the server and client code to understand how video data is transmitted and displayed in real-time.OverviewServer Code: The server listens for incoming connections, receives video frames from the client, and displays them.Client Code: The client reads video frames fr..

In this tutorial, we’ll create a server that captures video from a webcam and streams it to a client over a network. The client will receive the video frames and display them in real-time. PrerequisitesInstall the required libraries:pip install opencv-python2. Ensure you have a webcam connected to your machine. — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —How It Wor..

Sockets are the backbone of network communication. They allow programs to send and receive data over a network, enabling applications to communicate with each other. Whether you’re building a chat application, a file transfer system, or a web server, understanding sockets is essential. In this tutorial, we’ll cover the basics of sockets, including what they are, how they work, and how to create ..

In Django projects, working with users is a fundamental part of many applications. By default, Django provides the auth.User model, which includes basic user fields like username, email, password, etc. While sufficient for many scenarios, this default model may not always fit your application’s needs. To address this, Django allows you to define your own custom user model.In this lesson, we will..

Arrays are one of the most fundamental data structures in C++, allowing you to store multiple values of the same type in a single container. In this lesson, we’ll introduce arrays, explain their syntax, and provide two examples — one basic and one advanced — to showcase their usage.1. What is an Array?An array is a collection of elements stored in contiguous memory locations, all of which share ..

In this blog post, we’ll dive into two important CSS selectors: descendant and child selectors. Understanding these will help you write precise and efficient styles for your HTML elements. Let’s explore these concepts with examples and practical code snippets.HTML StructureHere’s the HTML structure for this lesson: Direct Child 1 Nested Child 1 Nested Child 2 Direct..

Loops allow for repeated execution of code blocks, and the while loop is a foundational construct in C++ for controlling repetition based on a condition. In this lesson, we’ll cover the syntax of the while loop, demonstrate a basic example, and introduce the break statement for enhanced control flow.1. While Loop SyntaxA while loop in C++ repeatedly executes a block of code as long as its condit..