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Optimizing DOM Updates in JavaScript for Better Performance

The Document Object Model (DOM) is a critical part of web development, enabling dynamic content updates.
Inefficient DOM manipulation can lead to sluggish performance in complex applications.
Common performance pitfalls include multiple reflows from sequential updates, layout thrashing, inefficient event listeners, expensive CSS changes, and unoptimized animations.
Optimization techniques include batch updates with DocumentFragment, separating reads and writes, using event delegation for event listeners, using classes instead of inline styles for CSS changes, using GPU-accelerated properties for animations, utilizing virtual DOM for library/framework approach, debouncing/throttling high-frequency updates, and hiding elements during batch updates.

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Medium

424

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How to Be a Senior PHP Developer (Without Faking It)

A senior PHP developer is not just someone with experience, but someone who knows how to use that experience wisely.
Senior developers know how to debug by digging into the PHP documentation and challenging themselves.
Optimizing queries and understanding how MySQL processes them is an important skill for senior PHP developers.
A senior developer has a good understanding of security vulnerabilities, thinks like a hacker, and reviews code effectively.

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Medium

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How Contracts Work in Racket and What They Actually Do

When you write a contract in Racket, you’re not just tagging your function with a description of what it should accept or return; you're actually wrapping that function with new behavior that checks every input and output.
The define/contract form in Racket builds a new version of the function that includes logic for checking the values going in and out every time the function is used.
Racket uses a system called blame tracking to identify who gave the input and who received the result when a contract violation occurs, making debugging easier.
Contracts apply to functions passed into other functions or returned from functions, creating wrappers around these inner functions to maintain contract checks.
Racket runs contract checks every time a value crosses a contract boundary, not just once, ensuring continuous validation.
Contracts in Racket can be applied to module exports, struct fields, and other values to ensure data integrity and prevent errors at function boundaries.
Racket's contract system adds mechanisms that stay with the function during the entire program runtime, affecting performance, memory, and processing of function calls.
Every contract in Racket creates a wrapper function that checks the contract before passing data along, adding extra steps that can impact performance, especially in loops or with nested functions.
The blame tracking feature in Racket provides detailed information on contract violations, aiding in pinpointing where and why an error occurred in the program.
Racket contract checks remain active throughout a program's execution, consuming memory and processing power with every wrapped value that passes through.

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Medium

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How Ethical Hackers Find and Fix Security Problems

Ethical hacking is the authorized process of testing a system to identify vulnerabilities and make it more secure.
Ethical hackers start by collecting information to learn about the system they are testing, similar to assessing the doors and windows before attempting a break-in.
They then use tools to identify weak spots within the system that could potentially allow unauthorized access.
Once weak spots are identified, ethical hackers attempt to exploit these vulnerabilities to demonstrate the potential risks if a malicious hacker were to gain access.

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Dev

150

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Introducing CapyCaptcha: The Next Generation of Bot Protection 🛡️🐾

CapyCaptcha is an advanced, AI-powered, ultra-secure, next-gen captcha system that leverages the charm of capybaras to filter out bots.
Users engage in intuitive challenges involving capybaras, such as dragging a watermelon closer to a capybara or selecting the 'cool' capybaras from a group.
CapyCaptcha offers a pixel-perfect UI design and a sophisticated multi-step challenge system.
It is an open-source tool that aims to make captchas fun and user-friendly.

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Medium

Python Cheat Sheet

Variables and Data Types
Data Structures
Conditional Statements
Loops

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Dev

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Stax: Revolutionizing Git Branch Management for Modern Developers

Stax is a Git branch management tool designed to simplify developers' workflow.
It provides visual representation of branch structure, automates cleaning up stale branches, and streamlines PR workflows.
Stax aims to reduce the cognitive load of repository management and make Git usage more intuitive.
To try out Stax, visit staxforgit.com and join the community of developers benefiting from this tool.

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Medium

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You need to stop making this mistake in Bug Bounty!

When choosing bug bounty programs, consider newer programs or those with fewer resolved vulnerabilities for better opportunities.
Private bug bounty programs with fewer hunters can provide a more exclusive environment for testing and finding vulnerabilities.
Evaluate the scope of the program, including specific system parts and types of vulnerabilities that are recognized and rewarded.
Consider targeting less competitive programs to increase your chances of finding unique vulnerabilities and gaining a competitive edge.

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Dev

265

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Day 4: Methods,static & Non static.

In Java, we call or access an object by creating an object of a class using the new keyword and calling methods and variables using the object.
Methods in Java provide code reusability, improve readability, reduce redundancy, and make debugging easier.
Static methods in Java are declared using the static keyword, belong to the class rather than a specific instance, can be accessed without creating an object, and can't access non-static members directly.
Global variables in Java can be instance variables or static variables, can be accessed by all methods in the class, and are declared outside of methods, inside the class; local variables are declared inside a method, constructor, or block, and can only be accessed within the method where they are declared.

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The Pragmatic Engineer

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The Reality of Tech Interviews in 2025

As of 2025, the tech hiring market has experienced a shift, with a notable decrease in full-remote roles and overall job openings compared to previous years.
Tech hiring is rebounding, especially for senior engineers, but the quality of candidates and evaluation criteria have become more demanding.
Changes in the interview process include harder technical questions in DSA and system design interviews, leading to a higher standard for passing performance.
The tech job market is selectively recovering, with specialized areas like AI experiencing strong demand while core domains face fewer opportunities.
Junior engineers and new grads encounter challenges in the current market, facing longer job searches due to scaled-back university hiring programs.
Mid-career engineers face more interview loops before receiving offers, while senior engineers with relevant expertise attract multiple competing offers.
Engineering managers face increased competition and are now expected to demonstrate technical proficiency along with leadership skills.
Tech interviews have become more rigorous, with an emphasis on advanced technical knowledge and downleveling becoming a common trend.
Team matching has evolved as an additional hurdle in the interview process, adding complexity and delays to securing final offers.
Startups have shifted towards more practical interviews, while Big Tech companies tend to stick with traditional formats, leading to differences in interview experience.

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Javacodegeeks

287

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OutSystems vs. Traditional Coding in 2025: Scalability for Large-Scale Apps

The debate between low-code platforms like OutSystems and traditional coding for large-scale apps intensifies.
OutSystems offers rapid prototyping and faster time-to-market, but limited customization and vendor lock-in risk.
Traditional coding provides full control and better support for complex algorithms, but slower development speed and higher initial costs.
In terms of scalability, OutSystems handles moderate workloads, while traditional coding with microservices and optimizations is better for large, high-traffic applications.

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Medium

318

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Making Decisions and Repeating Actions with Control Statements in JavaScript

Control statements in JavaScript allow your code to think, decide, and repeat based on conditions.
The four most common control statements in JavaScript are if, switch, while, and for.
If statements are used to execute code based on a specific condition being met.
Switch statements are used to evaluate multiple options and execute code accordingly.

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Medium

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Creative Paths to Make Money Online Every Day

It is possible to make money online from the comfort of your home.
Online income opportunities are diverse and accessible to anyone.
Identifying your strengths and aligning your work with your passion leads to success.
Freelancing platforms like Upwork and Fiverr can connect you with potential clients.

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Medium

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I Reviewed 100 GitHub Repositories and Found These 9 Shocking Security Flaws

A developer reviewed 100 popular GitHub repositories and found alarming security flaws.
Hardcoded credentials were found in 37% of the repositories, exposing API keys and passwords.
Some repositories had AWS credentials with admin privileges committed to public repositories.
Neglecting to use environment variables or rushing to meet deadlines were common reasons for these mistakes.

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Logrocket

362

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Axios in JavaScript: How to make GET, POST, PUT and DELETE requests

Axios is a promise-based HTTP client for making asynchronous HTTP requests in JavaScript for the browser and Node.js.
Axios provides a more powerful and flexible feature set compared to Fetch, including request and response interception, streamlined error handling, protection against XSRF, and support for upload progress.
To install Axios, you can use npm, Yarn, pnpm, or a content delivery network (CDN).
Making HTTP requests with Axios involves importing the axios function and passing a configuration object containing properties like method, URL, data, headers, and timeout.
GET requests with Axios are made by specifying 'get' as the method and the URL to be fetched from.
POST requests with Axios involve providing the URL and an object with key-value pairs to be sent to the server.
PUT requests in Axios are used to create or update a resource on the server by providing the resource's URI and payload data.
DELETE requests in Axios are used to remove a resource from the server by passing the method as 'delete' and the URL with a query parameter.
Axios provides shorthand methods like axios.get, axios.post, and others for different types of requests.
Axios handles responses and errors with promises, using the then() method for successful responses and the catch() method for errors.

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