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Why implement custom copy constructor in C++?

In C++, custom copy constructors are essential when dealing with complicated objects that require deep copying of memory.
If an object contains pointers or non-copyable types like std::mutex, a custom copy constructor must be implemented to ensure proper copying behavior.
Failure to define a custom copy constructor can lead to unexpected behavior, such as shallow copying of memory or compilation errors due to deleted default constructors.
By adding a custom copy constructor, one must also remember to add a default constructor to prevent compilation errors and ensure proper object construction.

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Memory Leaks in JavaScript and What Causes Them

JavaScript quietly allocates memory for new values like variables, objects, arrays, or functions when created.
Memory for small values is stored in variables, while larger structures are stored in heap memory.
Memory is reclaimed when a value is no longer reachable by any part of the running program.
JavaScript engines, like V8 and SpiderMonkey, use generational, incremental mark-and-sweep collectors.
Closures and DOM interactions are common causes of memory leaks in JavaScript.
Improperly cleared timers like setInterval and setTimeout can lead to memory leaks.
Detached DOM trees and undisposed event listeners can also cause memory leaks.
Proper memory management in JavaScript helps prevent slower performance, increased memory usage, and crashes.
Understanding reference creation and cleanup is crucial to avoiding memory leaks in JavaScript applications.
Regularly nullifying unnecessary references and cleaning up after closures and DOM manipulations can prevent memory leaks.

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Welcome to the Age of UXPMs

User experience professionals are evolving into User Experience Product Managers (UXPMs) as the focus shifts to not just how things look and feel, but also to what gets built and why.
UXPMs are part strategist, storyteller, researcher, and builder, focusing on product strategy, OKRs, prioritization frameworks, business models, and roadmaps.
Design thinking is being integrated upstream in organizations, with UXPMs involved in key decisions from the beginning to help set product vision and define value.
This shift to UXPMs does not water down the craft of design but contextualizes it, allowing for smarter design choices based on constraints, roadmap, budget, and customer lifecycle.

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Medium

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A Product Manager’s Dream — Interactive AI Design

PetPublish, a mobile-first software startup, is working on reducing length of stay and euthanasia rates in animal shelters and rescues.
The project involved creating a marketing website with static Figma designs converted into HTML/CSS/JS, utilizing Lottie Files for animations.
The use of LLM tools helped speed up coding and testing, particularly in animating sections like key metrics display and enhancing the 'Get Started' section.
Through iterative processes and leveraging LLM chat, the project lead successfully achieved desired interactive and responsive features for the website.

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TronWeekly

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SUI price dips 3.89% amid bullish signals and Claynosaurz partnership boost”

SUI price shows short-term weakness despite a bullish market structure.
Technical indicators suggest overbought conditions, leading to cautious optimism among commentators.
Strategic partnership between SUI and Claynosaurz aims to boost long-term Web3 adoption potential with immersive and interactive NFT entertainment experiences.
SUI token is currently trading at $3.33, down by 3.89% in the last 24 hours, with a minor pullback seen in the last seven days.

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Byte Byte Go

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EP161: A Cheatsheet on REST API Design Best Practices

To ensure server security, WorkOS AuthKit allows role-based access control and permission enforcement for critical tools.
A cheatsheet on REST API design best practices includes using resource-oriented paths, proper HTTP verbs, API versioning, standard error codes, idempotency, pagination, and strong API security measures.
Additional API design best practices discussed involve supporting pagination, ensuring idempotency for retry safety, and implementing proper security measures like authentication, authorization, and HTTPS.
Commonly used AWS services like EC2, Lambda, S3, RDS, CloudWatch, SageMaker, and more are categorized for understanding and utilization.
The Large-Language Model Glossary categorizes models, training processes, prompts, inference methods, and retrieval-augmented generation techniques for understanding large language models.
ByteByeGo is hiring for roles like Full-Stack Engineer and Sales/Partnership specialist, emphasizing problem-solving abilities and self-motivation over years of experience.
ByteByteGo offers newsletter sponsorship opportunities to reach a tech professional audience, providing ad spaces to showcase products and services to engineering leaders and senior engineers.

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The Fatal TypeScript Patterns That Make Senior Developers Question Your Experience

Recognizing and addressing TypeScript anti-patterns is crucial for demonstrating expertise in the language.
Overusing the 'any' type can indicate laziness or a lack of understanding of TypeScript's benefits.
Excessive type assertions can lead to critical bugs by bypassing TypeScript's type checking.
Utilizing primitive types for meaningful values can result in bugs and hinder TypeScript's ability to catch errors.
Duplicating type definitions rather than using type composition can lead to maintenance issues.
Avoid redundant type annotations that duplicate TypeScript's type inference capabilities.
Mishandling Promise types and async operations can be a sign of weak TypeScript and JavaScript understanding.
Complex generic type parameters may indicate a developer prioritizing complexity over clarity.
Inconsistency in handling nullable and optional values can lead to confusion and defensive coding.
Misunderstanding the difference between compile-time type checking and runtime validation can result in critical issues.

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TechBullion

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5 Must-Visit Coupon Sites Every Tech Buyer Should Know

Coupon sites can help save money on tech gear and digital tools, catering to students, freelancers, and small business owners.
SaveMyCent.com offers verified coupon codes for VPNs, proxy services, SEO tools, and more with clear instructions on how to apply them.
Proxy.Coupons specializes in deals for VPNs, proxies, and anonymity tools, ideal for privacy-conscious users like crypto traders and digital nomads.
EarthWeb features a coupon section with discounts on cybersecurity software, marketing tools, AI generators, and web services, each tied to detailed reviews.
Bountii.net curates coupons for tools like antivirus software, writing assistants, and cloud storage platforms, focusing on quality and clean design.
CouponMister.com offers deals on hosting, software subscriptions, design platforms, and online learning resources with user-driven reviews for reliability.
Using niche coupon sites like these can provide more personalized and relevant discounts for tech products compared to general coupon sites.
By utilizing niche coupon platforms, shoppers can access curated discounts tailored for digital tools, saving time and money in the process.
These niche coupon sites offer handpicked, tech-focused discounts that cater to specific needs, making it easier to find relevant and effective deals.
Whether you're a freelancer or student looking to save on tech purchases, leveraging these specialized coupon sites can optimize your savings strategy.

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Medium

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Spoonfed, Coached, or Guided? How Your Manager is Secretly Defining Your Career (and Sanity)

Difference between being spoonfed, coached, and guided in a work environment.
In a guidance culture, employees are given autonomy and trust to achieve goals independently.
Coaching involves managers investing in their team's growth and skill-building.
Spoonfeeding culture stifles innovation and initiative, leading to low morale and stagnation.

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The Robot Report

SEER Robotics offers digital product matrix

SEER Robotics outlines its digital architecture for manufacturing and logistics, emphasizing the importance of digital system software in the deployment of intelligent equipment like robotics.
Their digital system serves as a tool for optimizing production processes, enhancing operational efficiency, and leveraging data value in smart factories.
SEER Robotics follows the philosophy of 'Build your own robot fleet within days!' by integrating intelligent robot scheduling, warehouse logistics, and visualization technologies to empower enterprises in upgrading their digital transformation.
The company's digital product matrix includes the M4 Smart Logistics Management System and Visualization Series Products with modular architecture and open ecosystem capabilities.
SEER Robotics employs self-developed software architecture and algorithms to optimize robot task allocation, path planning, and traffic control by integrating industrial automation with business requirements.
The M4 System dynamically allocates tasks, optimizes warehouse strategies for efficiency, and uses collaborative planning algorithms for multi-agent traffic control.
SEER Robotics offers panoramic visualization tools that enable efficient decision-making by providing real-time information on robots, storage locations, and goods for optimizing production operations.
Their digital solutions further include lightweight single-robot scheduling, high-security communications based on optical technology, and flexible support for secondary development through a low-code engine.
SEER Robotics has empowered over 1,000 clients across 20 industries with their smart factory solutions, driving operational efficiency improvements and leading global smart factory transformations.

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Medium

233

Flutter Developers: The Dangerous Shortcut(!) You’re Probably Using

Using the ! operator in Dart can be a risky shortcut, as it can cause unexpected app failures if not handled carefully.
Online converters often use the ! operator blindly when generating model classes from JSON, leading to potential runtime crashes.
It is recommended to handle missing keys using the ?? operator to prevent app crashes and ensure a smoother user experience.
A solution to avoid using the non-null assertion operator (!) carelessly is by adding a dev dependency called avoid_non_null_assertion_operator.

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Medium

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Blades of the Void: Where Skill Meets Strategy and Rewards

Blades of the Void is a unique game where players can earn $VOID tokens, loot boxes, and upgrade materials by participating in matches against real opponents or AI missions.
The game operates on a player-owned economy, allowing players to own and trade in-game assets like characters, weapons, armor, mounts, and land as NFTs on open markets.
Players can stake claim to land in the game, build structures for passive income or clan support, and use the merging system to upgrade items into rarer, more powerful versions.
Blades of the Void rewards time, skill, and strategy rather than pay-to-win models, offering earning opportunities through tournaments, seasonal events, and future content updates.

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Day 2 of 20: Think Like a Dev — Storing Data the Smart Way in JavaScript

JavaScript provides different ways to store data using variables and understand various data types.
It is recommended to use 'let' for variables that may change, 'const' for fixed values, and 'var' for legacy code with reassignment.
When naming variables, it is advised to use camelCase and meaningful names for clarity and consistency.
JavaScript tutorials offer clear concepts, hands-on challenges, practical tips, and ensure steady progress in learning.

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Medium

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Databases vs Blob Storage: What to Use and When

Databases, like MySQL and PostgreSQL, are suitable for structured data such as user profiles and transactions, providing features like SQL queries, joins, and relationship management.
Blob storage services, such as Amazon S3 and Azure Blob, are designed for storing large, unstructured files like images and documents in the cloud without a strict schema.
A hybrid approach combining both traditional databases and blob storage can offer enhanced performance, flexibility, and scalability for modern applications.
Blob storage utilizes distributed object storage systems optimized for scalability and durability, storing files as blobs with metadata, breaking data into chunks, and replicating them across nodes.

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Medium

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What Elixir Taught Me About Design Patterns

In Elixir, design patterns emerge from failures in production, reflecting distributed, concurrent, and fault-tolerant design principles.
The actor model in Elixir treats each process as a living organism, facilitating asynchronous and failure-tolerant communication via messages.
GenServer formalizes the actor pattern, providing structure, callbacks, and defined interaction APIs for building stateful services.
Supervisors in Elixir introduce self-healing software by absorbing process failures with restart strategies like one_for_one and one_for_all.
Task.async_stream enables concurrent, non-blocking processing of collections, preventing system overload with max_concurrency and timeout settings.
The Application module in Elixir defines system behavior, emphasizing the lifecycle management and resilience hierarchy of processes.
GenStateMachine models explicit state transitions in stateful systems, promoting clarity, testability, and behavior debugging.
The Registry assigns names to live processes, offering global semantics for accessing and managing processes in distributed systems.
The Repository pattern abstracts data persistence mechanics, decoupling core logic from storage details and facilitating testing and backend swapping.
Context modules in Elixir provide semantic boundaries for system functions, offering composability, clarity, and refactoring flexibility.

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