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Scala Factory Pattern - Every Engineer’s Favorite Way to Store Objects

Scala Factory Pattern is widely used by engineers to store objects for ease of its creation.
The blog covers various topics like Types of Factory Patterns, Components of the Factory Pattern, Scala-Specific considerations, and Advanced topics.
Scala Factory Pattern comprises of three types of patterns: Simple Factory, Factory Method, and Abstract Factory.
FastFoodFactory represents a fast food joint that creates products such as a Burger or Pizza based on the client's order.
In Factory Method, the chefs are responsible for preparing the customers' dish based on specifications like spicy or sweaty dishes.
Abstract Factory is for clients seeking a cohesive set of products that pair well together. Each factory is prepared by a different chef.
Factory Pattern's Components are the product interface, concrete products, factory interface, concrete factory, and the client.
Scala enthusiasts can use Singleton objects to ensure that no matter how many times they request products, they get the same factory.
Scala's Trait is used to ensure that factory interfaces are flexible and mixable, making it simple to expand them later.
Scala's pattern matching assists in serving the right product quickly and efficiently and avoiding mixed Factory and Product roles.

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Dev

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Mastering Concurrent Control in GoFrame with gmlock

GoFrame's gmlock package provides concurrent control, making it easier to handle race conditions in Go applications.
Concurrent control is essential to avoid oversold products, inconsistent inventory counts, unhappy customers, and stressed-out dev teams.
gmlock offers simple locking, read-write locking, and try-locking with timeouts, providing effective solutions for concurrent access control.
Real-world examples include protecting user balance updates and safe configuration updates.

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Medium

161

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Programming vs. Coding vs. Development: What’s the Difference?

Coding is the lowest level of interaction with computers, consisting of creating instructions with a language that computers can read.
Coders focus on syntax and language rules of programming languages, as well as basic debugging.
Coding serves as the foundation for more complex concepts like programming and development.
Programming encompasses a broader understanding of system architecture and the entire application, going beyond coding.

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Dev

161

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Tips to learn python

Understanding the Basics: Learn Python's syntax, semantics, and indentation rules.
Using Interactive Tools: Utilize Python REPL and Jupyter Notebooks for experimentation.
Following a Structured Course: Take online courses or refer to books for structured learning.
Practicing Regularly: Solve coding challenges and work on small projects to apply your knowledge.
Learning Libraries and Frameworks: Familiarize yourself with the Python standard library and popular libraries for specific tasks.
Joined Community: Engage with communities like Reddit, Stack Overflow, and Python.org.
Explore Documentation: Refer to the official Python documentation for comprehensive explanations.
Practiced Debugging: Use debugging tools and IDEs with integrated features.
Used Version Control: Learn Git for version control and collaboration on projects.
Bonus: Consistency is key, code daily and regularly review your progress.

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Prodevelopertutorial

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Graph data structure tutorial 3. Graph Representation Adjacency List

Introduction: In this chapter, we will learn about representing a graph using adjacency lists.
Representation in Linked List: Linked Lists are used to represent the adjacency lists in this method.
Now why do we use Linked List to represent Adjacency Lists: Linked Lists allow for easy addition and deletion of vertices or edges.
Implementation of Graph Representation using Adjacency Lists using C++: The code demonstrates the implementation of a graph using adjacency lists in C++.

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Prodevelopertutorial

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Graph data structure tutorial 2. Graph Representation Adjacency Matrix

Introduction to graph representation using adjacency matrix
Understanding of graph representation with an example
Implementation of graph representation using adjacency matrix using C++
Output of the adjacency matrix implementation

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Prodevelopertutorial

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Graph data structure tutorial 1. Graph Introduction

Graph is a non-linear data structure made up of nodes/vertices and edges.
It does not have a root node and can be traversed in any direction.
A graph consists of vertices and edges, and can be directed or undirected.
Graphs are used for various purposes like finding minimum distance between cities, connecting places in a map, and in social media.

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Dev

103

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New 47 GitHub Repositories - OpenSource of Dec 20, 2024

Tads Basic Game Objects, Lightweight JavaScript Library
Dynamic Pydantic – Create Pydantic Models Using AI
Reverse Engineering – Lesson 1: x86 Course (Part 1: Goals)
A Raycaster in Bash
Low-Level Guidance Parser
Dockside: Self-Hosted GitHub Codespaces
Wa-automate-Node.js: Node.js library for a high-level API to control WhatsApp
Instruct LLMs to do what you want in Ruby
Want a faster MySQL drop-in replacement? Try MemCP
Video Seal: Open and Efficient Video Watermarking
Model Validation Using LLMs

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Dev

413

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Enhancing LRU Cache with Configurable Data Persistence

In this article, we explore how to extend an in-memory cache with configurable data persistence.
The goal is to design a flexible and scalable caching system that decouples storage mechanisms from the caching logic.
The article leverages the Adapter and Strategy patterns to create an extensible system that allows seamless integration of databases or services as needed.
A shared API abstraction, akin to ORM systems, ensures storage such as localStorage, IndexedDB, or even a remote database can work interchangeably with minimal code changes.
The cache is agnostic of storage details, and there is a flexible runtime selection of storage backend using the Strategy pattern.
Additionally, the article demonstrates best practices for singleton cache, async initialization, and lazy loading.
This design is robust and is available in the form of an npm package—adev-lru.
The article provides scope for further enhancements, such as optimizing sync logic for better performance.
The full source code for the adev-lru repository is available on GitHub.
The author welcomes contributions to make this caching system even better.

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Medium

Programming: The Heart of Modern Innovation.

Programming began in the 19th century with Ada Lovelace and has continued to evolve from assembly languages to high-level frameworks.
Programming is essential in various sectors like healthcare, finance, entertainment, shopping, education, and transportation.
Learning programming opens up job opportunities and cultivates problem solving, logical thinking, and creativity.
Programming is the foundation for future innovations such as artificial intelligence and space exploration, shaping tomorrow's possibilities.

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Medium

SIESTALTSIC TO ARISTO

A group of people visited the zoo in Aburar and enjoyed seeing various animals and birds.
They witnessed birds chirping and floating waterfowls in the clear water.
They also encountered jackals, foxes, and rode an elephant with fear.
The visit to the zoo was described as very enjoyable.

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Dev

247

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AI Models Can Now Critique Their Own Work, Boosting Performance by 13%

Study explores using AI-generated self-critiques to improve language model training
Introduces novel method where models evaluate and critique their own outputs
Demonstrates 13% improvement in reward modeling accuracy
Shows scalability and effectiveness for both small and large language models

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Dev

404

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5 Frontend Development Myths That Need to Die in 2024

Frontend development has come a long way in the last decade, but there are persistent myths that need to be debunked.
Myth 1: CSS Is Easy! - CSS may seem simple on the surface, but it is a powerful tool with complexities like specificity wars and browser inconsistencies.
Myth 2: Frameworks Solve Everything - While frameworks like React and Angular are useful, they may not be necessary for small, static sites.
Myth 3: The Backend Is the Hard Part - Frontend development involves solving complex problems like state management and ensuring accessibility.
Myth 4: You Can Skip Accessibility If You’re in a Rush - Accessibility is not optional and should be considered a non-negotiable part of the workflow.
Myth 5: Frontend Development Will Be Fully Automated Soon - While AI tools can assist with repetitive tasks, building intuitive interfaces requires human creativity and problem-solving.
Let’s challenge these myths and celebrate the complexity and creativity of frontend development.

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Dev

220

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Language Models Boost Robot Learning with Limited Training Data

LaMo is a new framework that combines language models with offline reinforcement learning.
It uses pre-trained language models to improve motion control with limited data.
LaMo features four key components: sequential pre-training, LoRA fine-tuning, MLP transformation, and language prediction loss.
It performs well in sparse-reward tasks and matches the performance of value-based methods, particularly with small datasets.

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Dev

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Winter Solstice: Frontend Challenge - December Edition

For the Frontend Challenge - December Edition, Glam Up My Markup: Winter Solstice, the developer created a visually dynamic and informative landing page dedicated to the celebrations of the Winter Solstice around the world. The page features a snowfall animation, gradient texts and buttons, responsive design, and various content sections covering the science, cultural traditions, and global celebrations of the solstice.
The developer incorporated a wintry atmosphere using a linear gradient background and a snow animation that flows gently throughout the page. The header and navigation are clean and visually appealing with gradient text and hover effects.
The snowfall background animation using CSS keyframes adds a touch of liveliness to the page. The developer learned more about CSS keyframes and background animations while working on this challenge.
The primary challenge was integrating the snowfall animation smoothly without affecting the page's loading speed. The developer optimized the background images and animations to ensure a smooth user experience.

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