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Make an interactive drum using the HTML Audio API

HTML Audio API allows programmatically interacting with audio in browsers.
API provides methods like play() and pause(), along with events like canplaythrough, pause, and play.
A practical example of building an interactive drum using HTML, CSS, and JavaScript was demonstrated.
The project involved creating div elements for drums, styling with CSS, loading drum sounds using Audio, and playing sounds on click events.

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Dev

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Java Security: Protecting Your Applications with Secure Coding, Cryptography & Access Control

Java Security is crucial for protecting applications from common cyber threats and unauthorized access.
The architecture includes the Security Manager, Access Control, and Policy Files for controlling code execution and permissions.
Secure coding practices involve input validation, output encoding, and avoiding dynamic queries in JDBC.
Authentication methods include Basic, Form-based login, OAuth, and LDAP integration, while authorization can be Role-Based or Attribute-Based.
The Java Cryptography Architecture (JCA) supports encryption, hashing, and digital signatures using APIs like java.security and javax.crypto.
The Security Manager provides runtime restrictions, ACLs, and Permissions to control class behavior.
Common Java security vulnerabilities include deserialization flaws, input validation issues, insecure use of Reflection APIs, and session vulnerabilities.
Securing Java web applications involves implementing HTTPS, session management, Content Security Policy (CSP), and CORS.
Security testing tools like SpotBugs, OWASP ZAP, and dependency checkers help detect vulnerabilities in Java applications.
Choosing secure frameworks like Spring Security, Apache Shiro, and libraries like OWASP ESAPI is essential for Java security.
Best practices include enforcing strong passwords, using secure random number generators, avoiding deprecated algorithms, and performing regular security audits.

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Dev

450

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How I Used Python to Almost Crash ChatGPT

An individual conducted an experiment using Python to test the limits of ChatGPT's response generation capabilities.
The experiment included exploring how ChatGPT handles recursion, large inputs, and nested logic, as well as practical limitations such as length and memory.
Observations revealed that ChatGPT has hard limits on token counts, context management weakens with longer threads, and the model fails for prompts exceeding certain character limits.
The key learnings highlighted ChatGPT's finite token limits, its abstraction of recursive prompts, and the importance of context management for longer sessions.

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Dev

266

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Demystifying Socket Programming: Build Your Own HTTP Server in C++!

Socket programming is crucial for enabling communication over the internet, powering applications like web servers and chat apps.
Understanding sockets, which act as the telephones of the internet, helps in grasping networking fundamentals.
The OSI Model, with its seven layers, serves as a blueprint for data transmission via the internet, from cables to application code.
The client-server model, akin to a dance, involves the server waiting for client connections, initiating a partnership for data exchange.
Choosing C++ for socket programming offers insights into networking fundamentals, performance control, and transparency in client-server communication.
While web frameworks like Express are great for quick app development, C++ excels in custom protocols, low-latency apps, and high-performance requirements.
Building an HTTP server in C++ involves socket creation, setting up the address, binding the socket, accepting connections, handling HTTP requests, and cleaning up.
The process includes steps like initializing the socket, configuring it, listening for connections, accepting incoming connections, and sending/receiving data.
Challenges in socket programming include address reuse, byte order considerations, and buffer management, all of which can be addressed with proper techniques.
Sockets extend beyond HTTP servers to power real-time chat apps, multiplayer games, distributed systems, IoT devices, and various other networking applications.

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Dev

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How to Manage Active Views, Popups, and View History in Large SPAs Using ReactJS Redux Toolkit

Managing views, popups, and view history in large SPAs like diagramming tools or applications can be challenging.
Using Redux Toolkit provides a clean and scalable solution for handling active views, popups, and view history.
Core state structure includes activeView for current view, meta for dynamic data, popupStack for layered modals, and history for back-navigation support.
This approach allows for managing view transitions, popups as a stack, undo with history support, and back-button onClick handler.

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Medium

229

MRP Marketing: Understanding Maximum Retail Price Strategies

MRP serves as a pricing strategy to balance profitability and consumer affordability in marketing, maintaining price consistency and fostering consumer trust.
Benefits of MRP include consumer protection, market stability, transparency, and trust-building, empowering consumers and creating a fair marketplace.
Challenges of MRP involve lack of flexibility, rural limitations, and misuse by sellers, necessitating a robust regulatory framework to prevent exploitation.
In e-commerce, MRP influences pricing wars, with online platforms offering discounts below MRP, causing tension with offline retailers and raising ethical concerns.

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Dev

225

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Why Every Programmer Needs a Non Computer Hobby 🎯

Having a non-computer hobby can recharge programmers and boost creativity and motivation.
Engaging in non-tech hobbies like music, sports, or cooking provides mental variety and prevents burnout.
Creativity often sparks outside of coding, during activities like walking or listening to music.
Non-computer hobbies facilitate human connections, broaden perspectives, and improve personal growth.
Physical health is enhanced by active hobbies like sports, walking, or gardening, reducing stress and improving well-being.
The author shares their passion for music as a creative outlet and a means to refresh their mind and soul.
Exploring nature, spending time outdoors, and socializing with friends provide mental refreshment and new perspectives.
Choosing a hobby based on genuine enjoyment and stepping away from work can greatly benefit mental and physical health.
Maintaining a balance between programming and non-computer hobbies leads to a more fulfilling and motivated life.
Embracing hobbies outside of programming enriches life experiences and contributes to a healthier mindset for tackling new projects.

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Insider

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This AI CEO says developers will be redefined as 'builders' in tech's next big shift

AI is set to 'democratize' software creation, transforming the role of traditional software developers into 'builders,' according to Windsurf's CEO, Varun Mohan.
AI will empower individuals to ask their AI assistants to create custom tools tailored to their needs, with the potential for continuous tweaking over time.
Vibe coding, a concept popularized by OpenAI cofounder Andrej Karpathy, leverages AI to revolutionize software development by enabling developers to feed prompts to AI for code creation.
Mohan emphasizes the importance of focusing on innovation and bold ideas over routine coding tasks, suggesting that engineering will evolve into a research-driven culture for startup success.

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Medium

399

A Comprehensive Project Report Is Essential for Government Loan Applications

A detailed project report for a bank loan is crucial for government loan applications as it covers all essential aspects of a firm's plan and provides assurance to lenders.
Project reports are key tools for banks and government organizations to assess the reliability and feasibility of loan applicants, increasing the chances of loan approval.
Specific reports like PMEGP project reports or CMEGP project reports play a vital role in showcasing the scope and viability of proposals for various schemes.
A well-structured project report helps in financial planning, builds trust with lenders, and acts as a roadmap for future success in securing loans.

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Dev

188

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Exploring Event Delegation in JavaScript

Event delegation in JavaScript is a powerful technique that ensures event listeners work even on dynamically created or destroyed elements.
Event delegation involves attaching event listeners to a common ancestor in the DOM and checking the event target during the event bubbling phase.
It is recommended to use event delegation when dealing with dynamic content, to reduce memory usage, and to handle future DOM updates seamlessly.
Using event delegation allows for event handling on elements that are dynamically added later, enhancing the functionality and efficiency of your code.

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Dev

215

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How to Send Emails in Spring Boot: Troubleshooting Guide

Sending emails in Spring Boot can sometimes lead to issues, such as a NullPointerException due to improper dependency injection.
To fix this issue, make sure to utilize Spring's testing features and allow Spring to manage the lifecycle of your dependencies properly.
Ensure correct configuration in the application.properties file, including the Gmail address and app password.
By following the troubleshooting steps, like checking configuration, firewall settings, and recipient email validity, you can successfully send emails in Spring Boot.

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Dev

188

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Why I Switched from REST to GraphQL (and What Broke)

The switch from REST to GraphQL was motivated by the limitations faced with REST in terms of frontend teams getting blocked, inefficient data fetching, and managing bloated APIs.
The flexibility of data requirements was a key factor in the decision to switch to GraphQL, allowing for a single schema to be exposed for clients to pull exactly what they need.
With GraphQL, frontend autonomy improved, the number of endpoints decreased significantly, precise responses were sent matching UI requirements, and auto-generated documentation streamlined onboarding.
Challenges encountered after the switch included difficulties in caching, complex authorization at the field level, N+1 query nightmares, weaker error monitoring, and a learning curve for the team, emphasizing the need for proper planning and training.

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PlanetPython

418

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Python GUIs: Build an Image Noise Reduction Tool with Streamlit and OpenCV �� Clean up noisy images using OpenCV

Image noise is a random variation of brightness or color in images, making it harder to discern finer details in a photo.
Noise reduction improves the visual appearance of photos, crucial in image analysis pipelines.
Multiple algorithms are available for denoising images, and the tutorial focuses on using OpenCV algorithms within a Streamlit app.
Users can upload images, choose noise reduction algorithms (e.g., Gaussian Blur, Median Blur), adjust strength, and download the processed image.
The tutorial covers setting up the working environment, building the app outline, uploading images, and understanding how Streamlit works.
It demonstrates converting uploaded images for processing, configuring noise reduction algorithms using sliders, and applying algorithms like Gaussian Blur and Median Blur.
The tutorial discusses noise reduction methods like Minimum Blur and Maximum Blur for specific noise types, along with Non-Local Means Denoising.
Improvements include adjusting layout for better user experience and enabling image download in different formats (PNG, JPEG).
Code structure is enhanced by segregating UI and processing logic into separate functions for better readability and maintenance.
In conclusion, the tutorial showcases building an interactive noise reduction app using Streamlit and OpenCV, offering a user-friendly way to enhance images.

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Medium

422

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What’s a database anyway?? A blog post for kids

A database is something everyone uses to organize and retrieve information, like searching for a book at the library or browsing TV shows.
Our minds also function like databases, storing memories based on importance and allowing quick access to information.
Human minds excel at language understanding, while machines require precise instructions in a database language to function efficiently.
Database languages bridge the gap between human communication and machine comprehension, ensuring accurate data processing.
Thinking like a database, assigning values and criteria to choices, can improve decision-making and understanding others' perspectives.
Utilizing database principles can enhance problem-solving skills and lead to better interpersonal relationships.
In a fun analogy, planning a camping trip using database-like thinking can help select the most suitable campsite based on predefined criteria.
Database queries, when formulated correctly, provide accurate responses and can adapt easily to changes in data.
Understanding databases simplifies their function and showcases how structured data management improves decision-making processes.
Database interaction fosters critical thinking skills and enhances analytical abilities, contributing to more effective problem-solving.

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Dev

362

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Modern Authentication Methods OAuth, JWT, and Beyond

Authentication is crucial for secure web applications, with OAuth 2.0, JWT, and OpenID Connect being widely used methods.
OAuth 2.0 is an authorization framework, enabling third-party apps to access user data without sharing credentials.
JWT provides a secure way for session handling in SPAs and stateless authentication with APIs, but it's essential not to store sensitive data in them.
OpenID Connect combines authentication with OAuth 2.0, offering an ID token for user identity information, while WebAuthn and Passkeys aim for passwordless authentication in the future.

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