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Battlefronts in Browser: Mercury Defenders & Nova Invaders Unleashed

Created two browser-based games using pure JavaScript, HTML5 Canvas, and browser storage - a tower-defense game on Mercury and an endless robot arena shooter.
Alieno-Mercury Combat is a retro tower-defense game with resource management, retro pixel art, and procedural enemy waves.
Nova Invaders is a fast-paced arena shooter with an endless mode, smart bullet refills, level-up mechanics, seamless UI transitions, and browser storage persistence.
Comparison of tech and tools used in both games, lessons learned like logical thinking, browser storage management, performance tuning, and deployment strategies.

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Dev

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How to Avoid JavaScript for Infinite Scrolling Using HTMX

Infinite scrolling is a popular UI pattern that allows users to scroll through a large set of data without clicking through pages.
With HTMX, you can implement infinite scrolling without custom JavaScript by utilizing server-side rendering.
The tutorial guides on setting up a Flask app, creating HTML templates, adding the infinite scroll trigger, and testing the implementation.
HTMX offers a simple implementation without custom JavaScript, fast server-side rendering, and lightweight efficiency for web apps.

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Dev

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HTMX for Better SEO: Enhancing Dynamic Pages with Server-Rendered HTML

SEO is crucial for web applications, and dynamic pages built with JavaScript can pose challenges for SEO due to search engine crawlers struggling to render JavaScript.
HTMX allows enhancing dynamic pages by maintaining server-side rendering for better SEO while offering a dynamic user experience.
Using HTMX with Flask, one can create SEO-friendly dynamic content with server-rendered HTML, ensuring search engines can crawl and index the content accurately.
HTMX enables building interactive pages with server-rendered HTML, benefiting SEO by providing content visibility to search engines without heavy JavaScript frameworks.

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Dev

183

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Using HTMX with REST APIs: Building Modern Web Apps with Minimal JavaScript

HTMX is a tool that allows developers to create interactive frontends without extensive custom JavaScript, making it suitable for server-driven applications with dynamic interfaces.
The guide demonstrates using HTMX to consume a REST API and update the UI dynamically with minimal JavaScript involvement.
Steps include setting up a Flask backend with a simple REST API, building a frontend in Flask to interact with the API using HTMX, creating HTML templates for UI rendering, and running both servers together.
HTMX facilitates utilizing REST APIs without heavy JavaScript frameworks, leveraging Python skills and Jinja2 templates, and maintaining a lightweight and fast frontend, while also requiring slightly more server-side processing and an extra integration layer.

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Dev

271

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Setting Up a VPS with Docker: A Step-by-Step Guide

Setting up a Virtual Private Server (VPS) with Docker allows for reliability, accessibility, and scalability.
Steps include connecting to the VPS, installing Docker, configuring DNS, creating a Docker context, and setting up Docker Swarm.
Application deployment using docker-compose and setting up a deployment user with SSH key for security are also covered.
Additional security considerations like configuring a firewall, setting up SSL, and implementing backups are suggested for a production-ready Docker environment.

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Medium

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Understanding Time Complexity and Space Complexity

Time complexity measures how the runtime of an algorithm increases as the input size grows.
Space complexity measures how much memory an algorithm needs in relation to the input size.
Examples such as O(1) and O(n) illustrate constant and linear time/space complexity.
Understanding these complexities helps optimize code for efficiency and scalability.

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Johndcook

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The simple part of the logistic map isn’t that simple

The logistic map explores the behavior of a value x as the function f(x) = r*x(1 - x) is iteratively applied with x between 0 and 1 and r between 0 and 4.
For values of r between 0 and 3, the convergence of the iterates of the logistic map is analyzed in detail, focusing on the questions of whether the sequence converges, what it converges to, the qualitative convergence behavior, and the speed of convergence.
The convergence for r values below 1, between 1 and 2, and between 2 and 3 is described, highlighting how the behavior changes from monotonically decreasing to oscillating as r increases.
Specific cases like r = 1, 2, and 3 are discussed, showing that convergence can vary from slow to fast depending on the value of r, with r = 2 presenting quadratic convergence.

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Dev

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🏆 How to Add a Loyalty Card to Google Wallet Using Laravel (Step-by-Step)

Google Wallet provides a digital loyalty card solution for businesses wanting to offer modern wallet experiences to users.
The process involves generating a 'Save to Google Wallet' link that stores loyalty cards, including QR code, points, and branding, on users' phones.
Key steps include setting up the Google Wallet API, creating a Laravel service for card generation, and building the link for users to save their loyalty card.
The loyalty card is securely saved to the user's Android device, providing a seamless and branded experience at checkout without the need for a separate app.

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Dev

418

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When Servers Talk to Strangers: SSRF

Server-Side Request Forgery (SSRF) is a cybersecurity threat where attackers manipulate servers to make unauthorized requests, potentially exposing sensitive internal systems.
Attackers trick servers into making requests on their behalf, gaining access to internal resources or bypassing authentication protocols.
SSRF attacks include accessing internal systems, bypassing authentication, and blind SSRF where attackers don't directly see the response.
Preventive measures include using whitelists for URLs, enforcing authentication, segmenting networks, and monitoring outbound requests to mitigate SSRF vulnerabilities.

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Dev

197

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Embracing Rich Domain Objects: A Practical Guide

Rich Domain Objects (RDO) advocate for encapsulating both state and behavior within domain entities, promoting a cohesive architecture.
RDOs in Domain-Driven Design (DDD) model software entities based on data structure, domain responsibilities, and behavior.
Benefits of RDOs include encapsulation of business logic, improved domain consistency, self-validation, and business-aligned code.
A practical example demonstrates implementing an Athlete class using RDO principles in Java, ensuring valid and synchronized data.
Through automatic category assignment based on age rules, the Athlete class maintains consistency and avoids invalid object states.
Rich Domain Objects facilitate easier testing due to embedded business logic, resulting in more reliable unit tests.
Embracing RDOs leads to more robust, behavior-oriented domain modeling, aligning systems with real-world business processes.
By embedding business logic in domain entities, applications become more resilient and expressive, reducing bugs and enhancing testing.
A fundamental question to consider is whether an object should only store data or also manage and validate that data for a more effective design.
RDOs enable developers to create maintainable systems aligned with stakeholder language, offering clearer APIs and better testing.

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Python Blogs

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Is Notepad++ Used for Programming?

Notepad++ is a free source code editor primarily used for programming on Windows.
It supports multiple programming languages and offers features like syntax highlighting, tabbed interface, and plugins.
While Notepad++ is not a full Integrated Development Environment (IDE), it can emulate some IDE functionalities with the help of plugins.
Notepad++ is popular among new programmers, experienced coders for quick edits, web developers, system admins, and those who prefer light and customizable coding tools.

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Dev

436

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Proposal: A Custom Widget Editor for Elementor (HTML/CSS/JS, Built-In)

Building custom widgets in Elementor usually involves PHP and WordPress plugins, creating a barrier for frontend developers.
The proposal suggests a built-in Custom Widget Editor in Elementor that would allow creating widgets using HTML, CSS, and JavaScript.
Features of the Custom Widget Editor would include code editor tabs, live preview, widget reuse, export options, and syntax highlighting.
The idea has been shared in Elementor's GitHub Discussions to gather support and collaboration for implementing this feature.

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Medium

432

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How to Vibe Code without breaking everything

Vibe coding can lead to chaos when AI helpers rewrite code, but Task Master AI can help manage tasks effectively.
Task Master AI is a free, open-source tool that transforms vague AI prompts into clear and sequenced tasks to prevent codebase disruptions.
The tool enables building automated, agent-based research loops with detailed tasks, tests, and self-healing documentation.
By defining small, clear tasks, Task Master AI reduces the risk of AI models rewriting entire projects and ensures task boundaries are understood.

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Dev

110

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GitHub Copilot vs. Cursor AI: Which AI Pair Programmer Wins in 2025?

The key differentiators between Cursor AI and GitHub Copilot include context awareness, AI flexibility, and cost.
Choose Cursor AI if you work with large codebases, want AI that understands your architecture, or don't mind switching editors. Stick with Copilot if you're IDE-agnostic, need GitHub integration, or prefer the $10/month pricing.
Cursor AI excels in project-aware coding, while Copilot is preferred for general use based on performance benchmarks.
For more detailed comparisons and speed tests, visit the full analysis on Dev Tech Insights. It's advisable to try both tools for a week before making a decision, as they offer free tiers.

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Dev

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🧠 JavaScript Framework Showdown: React vs. Vue vs. SolidJS in 2025

In 2025, React, Vue, and SolidJS stand out in front-end development in the JavaScript ecosystem.
SolidJS is the winner in performance due to its fine-grained reactivity and compiled output.
React excels in developer support, Vue in simplicity, and Solid in logic clarity, tying in developer experience.
SolidJS wins in reactivity model, React dominates in ecosystem & tooling, while Vue is best for developer onboarding and productivity.

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