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Tracking Mongoose Query Times with a Few Lines of Code

The article discusses a method to log Mongoose queries and track their execution time without using an APM tool.
A generic user schema for name and email details is provided to demonstrate the profiling process.
The implementation includes a profiler that captures query start time, calculates duration, and logs query details while redacting sensitive information.
By integrating this profiler into schemas, developers can monitor query performance, identify slow queries, and optimize them for better system performance.

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Dev

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Destructor in python

A destructor (del) in Python is used to clean up resources when an object is about to be destroyed.
Python's garbage collector automatically triggers the destructor when there are no more references to that object.
The del() method can be useful for closing files, disconnecting from databases, or freeing up custom resources.
Python's memory management system handles memory allocation, and you cannot force the garbage collector to run at an exact time.

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Medium

312

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Distance Relationship

Distance relationships teach lovers to communicate in a unique language of their own, cherishing thoughtful gestures and shared moments.
The separation enhances the value of small things like messages, songs, and countdowns to meetings, often overlooked by those physically close.
Reunions in distance relationships symbolize patience, enduring love, and the strength of their bond forged through time and space.
In such relationships, miles are not obstacles but evidence of a powerful connection beyond geographical constraints.

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Medium

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Vibe coding: The ultimate guide to the trend devs love and hate

Vibe coding, a new coding trend, involves using AI tools like Cursor and GitHub Copilot to generate code based on vague prompts, blurring the line between parody and productivity.
Developers either embrace vibe coding for its flow state benefits or fear its potential to lead to copy-paste coding and lack of in-depth understanding.
Vibe coding thrives on instant feedback and minimal blockers, favoring lightweight tools like Next.js and Vite.
Cursor stands out for scanning codebases, allowing developers to interact with their code like chatting with an AI assistant.
Vibe coding has the potential to be a superpower if used judiciously, as it can lead to rapid code generation and UI development.
However, over-reliance on vibe coding can weaken problem-solving skills and hinder deep understanding of the codebase.
While vibe coding can feel productive, it is essential to verify the generated code, run tests, and consider edge cases before deployment.
Future developers will need to balance vibing with verifying, treating AI as a thought partner rather than a code generator.
Vibe coding represents a shift in how developers work, integrating AI as collaborators in the coding process rather than mere tools.
In essence, vibe coding is not a replacement for traditional engineering but a means to infuse joy and creativity back into software development.
The key is to vibe responsibly, leveraging AI tools for speed and momentum while ensuring a solid understanding of the codebase and maintaining coding fundamentals.

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Medium

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Anonymously Tracing Watchlists broke my hypervisor, Now I can’t program

The list includes a wide range of domain names, from generic terms like 'car' and 'healthcare' to brand names like 'Amazon' and 'Apple'.
The extensive list covers various industries and interests, including technology, finance, entertainment, and more.
The domains range from country-specific ones like '.us' and '.uk' to more specialized ones like '.yoga' and '.movie'.
These domain names offer a glimpse into the diverse range of online identities and businesses present on the internet.

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Medium

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9 DevTools Techniques That Will Expose Hidden Performance Killers in Your GetX Apps

An app using GetX framework faced performance issues, consuming 800MB memory and causing ANRs on older devices.
A warning from a senior architect about creating performance nightmares with GetX was highlighted, leading to the need for performance testing.
The experience led to diving into Flutter DevTools for profiling GetX controllers to address invisible performance issues.
The focus shifted from fixing bugs to preventing them entirely through performance testing and optimization.

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Dev

324

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Constructor Function in JavaScript

A constructor function in JavaScript is a special type of function used to create and initialize objects, acting as a blueprint for creating multiple instances of similar objects.
Key characteristics of a constructor function include being called with the new keyword, used for initializing object properties, and conventionally named with a capitalized first letter.
Inefficient way of adding methods is defining inside the constructor function, leading to new function creation for every instance, while the efficient way is using prototype for shared methods.
By using .prototype for methods, memory usage is reduced, and JavaScript looks up methods through the prototype chain when calling them, allowing shared use among instances.
The constructor property in JavaScript ensures that instances can identify their constructor function, and instanceof is used to check if an object was created by a specific constructor.
ES6 introduced class syntax as syntactic sugar over constructor functions, making syntax more readable and automatically adding methods to the prototype.
When using new Circle(), an empty object is created internally, the prototype is set, properties or methods using this are assigned to the new object, and the new object is returned.
Instances can override prototype methods if needed, providing flexibility in method definitions, and Object.create() allows manual prototype setting without constructor functions.
Difference between constructor function and regular function include usage with new, purpose of creating objects, naming convention, prototype linkage, and return behavior.
Capitalization is not mandatory for constructor functions, but it is a best practice to use PascalCase to indicate that the function should be called with new, helping distinguish them from regular functions.

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Medium

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How I Made $500 in a Week Using This AI Bundle

Discover how an individual made $500 in a week utilizing a bundle of 12 AI apps for just $14.95.
The AI bundle offers tools for various business aspects like website creation, video development, and SEO management at an affordable rate.
Users can also rebrand and resell these apps, keeping 100% of the profits, without the need to develop the tools themselves.
The ease of use and no-recurring fee structure of the bundle make it a valuable investment for individuals looking to enhance their business operations and generate income.

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Medium

301

GitHub Copilot Just Became an Autonomous Coding Agent — Here’s What That Means for Dev Teams

GitHub Copilot has evolved into an Autonomous Coding Agent using GitHub Actions to launch private ephemeral dev environments.
Engineers can leave review comments for Copilot to rework the code like a teammate, leading to a major advancement in AI-assisted development.
Copilot can handle repetitive or 'nice-to-have' tasks, allowing more focus time for developers and creating a self-maintaining codebase.
GitHub has provided important security features, making Copilot secure, scoped, and under human supervision. It is now available in public preview with billing starting on June 4, 2025.

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Javacodegeeks

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Spring Boot 3 + Record-Based DTOs: Cleaner APIs with Better Type Safety

Java 16 introduced records for immutable data modeling, now combined with Spring Boot 3 for cleaner, more secure, and type-safe APIs.
Records offer benefits like immutability, better readability, automatic component generation, safer data flow, and alignment with functional programming patterns.
Using records as DTOs in Spring Boot 3 simplifies code by eliminating boilerplate constructs and ensuring type safety in request and response bodies.
Best practices include keeping record DTOs purpose-specific, using mapping libraries for entity-DTO conversion, applying Bean Validation annotations for security, and avoiding logic within records.

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Logrocket

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Leader Spotlight: Building and growing a lasting community, with Derek Pharr

Derek Pharr is Chief Product Officer at Sporcle, Inc., leading products and community initiatives for the past 16 years.
Community-focused projects like tournaments, editor programs, and quizzes have driven Sporcle's growth and engagement strategies.
Engagement, trust-building, and feedback channels are key in setting Sporcle's product vision and strategy for long-term community success.
Success metrics for community platforms like Sporcle include user contributions, forum engagement, quiz plays, and badge earning.
User feedback and data insights led Sporcle to adjust ad strategies to provide cleaner, contextual user experiences.
Balancing user feedback, data analytics, and internal initiatives shapes Sporcle's future direction and community evolution.
User-driven features like Sporcle Tournaments and teacher tools are part of ongoing investments in community-driven initiatives.
Early investments in quiz creation tools, editor programs, and badge systems laid the foundation for Sporcle's community growth.
Building meaningful connections, recognizing users' contributions, and consistent engagement are essential in community building.
Personal projects like the Chief Rabbit newsletter have allowed Derek to apply community-building lessons from Sporcle to other initiatives.

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Dev

364

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Birth of JavaScript: 10 Days, One Man, and a New Era

In 1995, JavaScript was created by Brendan Eich in just 10 days, becoming the widely-used programming language on the internet.
JavaScript was developed to add interactivity, validation, and dynamic behavior to the web, which was previously static.
Netscape, the dominant browser company at the time, sought a lightweight scripting language for web designers, leading to the creation of JavaScript.
Java and C++ were not suitable for client-side scripting on browsers, prompting the need for a more accessible language like JavaScript.
Initially named Mocha and LiveScript, JavaScript was later coined as a marketing tactic to ride the popularity wave of Java.
JavaScript was designed around the needs of the early web, focusing on functions as first-class, prototypal inheritance, and browser event-driven interactions.
Despite initial bugs and inconsistencies, JavaScript survived and evolved to become the most crucial language for web development.
JavaScript's impact has lasted for decades, revolutionizing the web with its ability to bring interactivity and dynamism to web pages.
Episode 2 will explore how JavaScript overcame challenges and emerged as a pivotal language on the internet.
The journey of JavaScript showcases resilience, evolution, and significance in shaping the modern web landscape.

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Dev

202

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Ultimate guide to creating a pipeline(Apache Airflow)

Apache Airflow is an open-source platform for workflows like ETL processes or reporting tasks.
The guide covers setting up WSL on Windows, installing PostgreSQL, configuring Apache Airflow, and creating a DAG.
For Windows users, WSL enables running a Linux environment for tools like Apache Airflow.
PostgreSQL is set up to serve as the metadata database for storing Airflow information.
Steps involve installing WSL, updating packages, installing PostgreSQL, and creating databases and users.
Apache Airflow setup includes creating a virtual environment, setting environment variables, installing Airflow with PostgreSQL support, and initializing the database.
Configuration steps include editing the airflow.cfg file, creating a DAGs folder, and optimizing Airflow settings.
A sample DAG is provided for ETL processes using Python operators to extract, transform, and load data.
The guide also covers starting the Airflow webserver and scheduler, accessing the Airflow UI, and confirming database connections.
The process involves thorough steps from installations to configuration for a seamless data pipeline setup.

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Dev

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Why is my React component flickering?

React component re-renders can happen even if no visible change occurs.
React.memo can be used to prevent unnecessary re-renders in components that do not change.
Using useMemo with Context can ensure the value remains the same if the data hasn't changed.
Context re-renders children if the value changes, even if the value appears the same.

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Medium

216

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Linear Algebra For Machine Learning — Explained Visually

Linear algebra is a crucial language behind high-dimensional data, embeddings, PCA, and neural networks in machine learning.
Understanding linear algebra helps in improving models and debugging them when issues arise.
Matrices are powerful transformations that act on vectors, enabling rotations, scaling, flipping, or squashing of data.
Eigenvalues and eigenvectors play a significant role in understanding transformations and finding hidden structures in data for applications like PCA and SVD.

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