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Pavel Kostromin

JavaScript is my favorite chaos engine. I love its quirks, its freedom, and the weird magic that happens between lines. Expect tricks, pitfalls, and plenty of experiments.

Joined on Feb 19, 2026

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94 posts published

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Traditional Metrics Fall Short: Adopting Narrative-Driven Insights for Actionable Software Development Analysis

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Pavel Kostromin

Pavel Kostromin

Traditional Metrics Fall Short: Adopting Narrative-Driven Insights for Actionable Software Development Analysis

#software #metrics #narrative #productivity

9 min read

JavaScript Object References vs. C Pointers: Clarifying Memory Address and Copying Differences

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Pavel Kostromin

Pavel Kostromin

JavaScript Object References vs. C Pointers: Clarifying Memory Address and Copying Differences

#javascript #c #memory #references

13 min read

Evaluating Hydration and Rendering Strategies for Optimal Web Application Performance

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Pavel Kostromin

Pavel Kostromin

Evaluating Hydration and Rendering Strategies for Optimal Web Application Performance

#hydration #rendering #performance #webdev

7 min read

Improving JavaScript Bundler Performance with Rust-Based Glob Pattern Matching to Overcome Picomatch Limitations

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Pavel Kostromin

Pavel Kostromin

Improving JavaScript Bundler Performance with Rust-Based Glob Pattern Matching to Overcome Picomatch Limitations

#javascript #rust #performance #bundler

8 min read

Debugging Pitfalls: How Console.log() and DevTools Can Mislead Developers and How to Avoid Them

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Pavel Kostromin

Pavel Kostromin

Debugging Pitfalls: How Console.log() and DevTools Can Mislead Developers and How to Avoid Them

#debugging #javascript #devtools #consolelog

11 min read

Lightweight JavaScript Library for Visual Hierarchical Data Creation, Preview, and Validation

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Pavel Kostromin

Pavel Kostromin

Lightweight JavaScript Library for Visual Hierarchical Data Creation, Preview, and Validation

#javascript #hierarchical #visualization #validation

6 min read

5 Proven Strategies to Build Long-Term Client Relationships for Consistent Multi-Project Orders in Early Career Stages

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Pavel Kostromin

Pavel Kostromin

5 Proven Strategies to Build Long-Term Client Relationships for Consistent Multi-Project Orders in Early Career Stages

#relationships #clients #freelance #strategy

10 min read

Optimizing LLM Inference: Balancing Speed, Resources, and Flexibility for Enhanced Application Performance

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Pavel Kostromin

Pavel Kostromin

Optimizing LLM Inference: Balancing Speed, Resources, and Flexibility for Enhanced Application Performance

#llm #inference #optimization #speed

14 min read

Slint 1.17 Release Lacks Discussion on Challenges, Compatibility, and User Adoption Concerns

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Pavel Kostromin

Pavel Kostromin

Slint 1.17 Release Lacks Discussion on Challenges, Compatibility, and User Adoption Concerns

#slint #ui #compatibility #adoption

6 min read

146ドルK Retaining Wall Replacement: How a Glen Cove Homeowner Can Slash Costs with Smart Alternatives

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Pavel Kostromin

Pavel Kostromin

146ドルK Retaining Wall Replacement: How a Glen Cove Homeowner Can Slash Costs with Smart Alternatives

#retainingwalls #costsaving #construction #materials

15 min read

Using Arrays as Dictionary Keys: Hashability and Alternative Solutions for Mapping Multiple Keys to One Value

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Pavel Kostromin

Pavel Kostromin

Using Arrays as Dictionary Keys: Hashability and Alternative Solutions for Mapping Multiple Keys to One Value

#javascript #arrays #hashability #mapping

8 min read

Compact JavaScript Signal/Observer Pattern: Balancing Brevity and Functionality in 33 Bytes

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Pavel Kostromin

Pavel Kostromin

Compact JavaScript Signal/Observer Pattern: Balancing Brevity and Functionality in 33 Bytes

#javascript #signalobserver #brevity #readability

10 min read

Comparing Node.js Postgres Client Libraries: brianc/node-postgres vs. porsager/postgres for Efficiency and Use Cases

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Pavel Kostromin

Pavel Kostromin

Comparing Node.js Postgres Client Libraries: brianc/node-postgres vs. porsager/postgres for Efficiency and Use Cases

#node #postgres #performance #benchmarking

10 min read

Efficient Streaming JSON Parser Solves Large File Handling with Low Memory and High Speed

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Pavel Kostromin

Pavel Kostromin

Efficient Streaming JSON Parser Solves Large File Handling with Low Memory and High Speed

#json #parsing #rust #streaming

11 min read

Simplifying TypeScript Compiler Plugin Integration: Addressing Complexity with Streamlined Setup Solutions

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Pavel Kostromin

Pavel Kostromin

Simplifying TypeScript Compiler Plugin Integration: Addressing Complexity with Streamlined Setup Solutions

#typescript #ttsc #plugins #automation

7 min read

Wasp Framework's New TypeScript Feature: Addressing Uncertainty and Exploring Improvements

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Pavel Kostromin

Pavel Kostromin

Wasp Framework's New TypeScript Feature: Addressing Uncertainty and Exploring Improvements

#typescript #fullstack #development #centralization

12 min read

Browser-Based Agent Uses WebGPU and Client-Side LLMs to Interact with Web Content Without API Dependencies

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Pavel Kostromin

Pavel Kostromin

Browser-Based Agent Uses WebGPU and Client-Side LLMs to Interact with Web Content Without API Dependencies

#webgpu #llms #privacy #autonomy

14 min read

Streamline Web Development: Reusable Loading Indicators to Save Time Across Projects

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Pavel Kostromin

Pavel Kostromin

Streamline Web Development: Reusable Loading Indicators to Save Time Across Projects

#webdev #loadingindicators #reusability #optimization

10 min read

Using AWS Serverless Technology for Demo Assignment Secures Full-Stack JS Role

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Pavel Kostromin

Pavel Kostromin

Using AWS Serverless Technology for Demo Assignment Secures Full-Stack JS Role

#aws #serverless #fullstack #react

10 min read

Vanilla JS 2D Physics Engine Needs Bug Fixes and Enhancements for Stability and Performance

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Pavel Kostromin

Pavel Kostromin

Vanilla JS 2D Physics Engine Needs Bug Fixes and Enhancements for Stability and Performance

#javascript #physics #simulation #bugs

13 min read

Enhancing Source Maps: Recovering Function Names and Context in Minified JavaScript/TypeScript Bundles

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Pavel Kostromin

Pavel Kostromin

Enhancing Source Maps: Recovering Function Names and Context in Minified JavaScript/TypeScript Bundles

#sourcemaps #javascript #typescript #debugging

10 min read

Compiling Google OR-Tools to WebAssembly Simplifies Browser-Based Optimization Solvers

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Pavel Kostromin

Pavel Kostromin

Compiling Google OR-Tools to WebAssembly Simplifies Browser-Based Optimization Solvers

#webassembly #optimization #ortools #browser

7 min read

ParadeDB NPM Package Seeks Feedback on Simplifying Postgres Integration with JavaScript via Drizzle ORM

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Pavel Kostromin

Pavel Kostromin

ParadeDB NPM Package Seeks Feedback on Simplifying Postgres Integration with JavaScript via Drizzle ORM

#postgres #javascript #drizzleorm #vectorsearch

11 min read

Seeking Feedback to Enhance Trust, Usability, and Adoption of New Open-Source npm Packages

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Pavel Kostromin

Pavel Kostromin

Seeking Feedback to Enhance Trust, Usability, and Adoption of New Open-Source npm Packages

#opensource #npm #feedback #trust

7 min read

Blocking Rendering with Scripts: When and Why to Avoid Async/Defer in the

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Pavel Kostromin

Pavel Kostromin

Blocking Rendering with Scripts: When and Why to Avoid Async/Defer in the

#javascript #performance #rendering #security

12 min read

WebGL-Based iOS Liquid Glass Effect Library: Achieving Pixel-Perfect Rendering with Refractions and Chromatic Aberration

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Pavel Kostromin

Pavel Kostromin

WebGL-Based iOS Liquid Glass Effect Library: Achieving Pixel-Perfect Rendering with Refractions and Chromatic Aberration

#webgl #rendering #refraction #chromaticaberration

9 min read

Contributing to React Router: Implementing Callsite Revalidation Opt-out Without Prior Experience

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Pavel Kostromin

Pavel Kostromin

Contributing to React Router: Implementing Callsite Revalidation Opt-out Without Prior Experience

#reactrouter #opensource #contribution #performance

11 min read

Optimizing SDF Ray-Marching Performance: Overcoming `console.log` Limitations with `%c` for Pixel Rendering

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Pavel Kostromin

Pavel Kostromin

Optimizing SDF Ray-Marching Performance: Overcoming `console.log` Limitations with `%c` for Pixel Rendering

#raymarching #consolelog #optimization #sdf

12 min read

Fair Benchmarking of Frontend Framework Bundle Sizes: Isolating Framework Behavior from App Logic Variations

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Pavel Kostromin

Pavel Kostromin

Fair Benchmarking of Frontend Framework Bundle Sizes: Isolating Framework Behavior from App Logic Variations

#benchmarking #frontend #bundlesize #frameworks

10 min read

Enhancing Electron's IPC: Addressing Robustness and Developer Experience for Complex Applications

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Pavel Kostromin

Pavel Kostromin

Enhancing Electron's IPC: Addressing Robustness and Developer Experience for Complex Applications

#electron #ipc #typesafety #refactoring

9 min read

Virtual Scroll Custom Element: Mimicking Native Scroll Behavior Without Common Virtualization Trade-Offs

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Pavel Kostromin

Pavel Kostromin

Virtual Scroll Custom Element: Mimicking Native Scroll Behavior Without Common Virtualization Trade-Offs

#virtualization #performance #a11y #css

12 min read

Terminal-Style Web Component: Seeking Feedback on Utility and Potential Value

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Pavel Kostromin

Pavel Kostromin

Terminal-Style Web Component: Seeking Feedback on Utility and Potential Value

#webcomponents #terminal #cli #development

12 min read

Mitigating ReDoS Attacks in JavaScript: Strategies to Enhance RegExp Performance and Security

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Pavel Kostromin

Pavel Kostromin

Mitigating ReDoS Attacks in JavaScript: Strategies to Enhance RegExp Performance and Security

#redos #javascript #regex #security

7 min read

Streamlining Browser Extension Development: Overcoming Repetitive Tasks and State Management Complexities

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Pavel Kostromin

Pavel Kostromin

Streamlining Browser Extension Development: Overcoming Repetitive Tasks and State Management Complexities

#development #extensions #statemanagement #automation

12 min read

JavaScript Error Handling: Moving Beyond Generic Catch-Alls for Efficient Debugging and Resolution

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Pavel Kostromin

Pavel Kostromin

JavaScript Error Handling: Moving Beyond Generic Catch-Alls for Efficient Debugging and Resolution

#javascript #errors #debugging #codequality

11 min read

Rust Binary Distribution via npm: Addressing Security Risks and Installation Failures with Native Caching Solutions

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Pavel Kostromin

Pavel Kostromin

Rust Binary Distribution via npm: Addressing Security Risks and Installation Failures with Native Caching Solutions

#rust #npm #security #distribution

12 min read

Math.random() Non-Compliant with NIST 800-63B: Adopt Cryptographically Secure Random Number Generators

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Pavel Kostromin

Pavel Kostromin

Math.random() Non-Compliant with NIST 800-63B: Adopt Cryptographically Secure Random Number Generators

#security #compliance #csprng #entropy

7 min read

Simplifying Privacy Policy Creation: Automating Compliance from Code Without Additional Tools

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Pavel Kostromin

Pavel Kostromin

Simplifying Privacy Policy Creation: Automating Compliance from Code Without Additional Tools

#automation #compliance #astro #privacy

5 min read

Enhancing ffetch: Opt-in Shortcuts for Requests and Responses While Preserving Native Fetch Compatibility

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Pavel Kostromin

Pavel Kostromin

Enhancing ffetch: Opt-in Shortcuts for Requests and Responses While Preserving Native Fetch Compatibility

#http #fetch #plugins #productivity

6 min read

Adapting to styled-components 6.4: Navigating Updates for Compatibility and Performance

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Pavel Kostromin

Pavel Kostromin

Adapting to styled-components 6.4: Navigating Updates for Compatibility and Performance

#styledcomponents #rsc #caching #reactnative

12 min read

Lightweight HTTP Client Solution: Customizable Features Without Library Overhead

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Pavel Kostromin

Pavel Kostromin

Lightweight HTTP Client Solution: Customizable Features Without Library Overhead

#http #fetch #modular #performance

12 min read

Malicious Code Hidden in Build Config Files Exploits Trust in PRs: Enhanced Scrutiny and Automated Checks Proposed

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Pavel Kostromin

Pavel Kostromin

Malicious Code Hidden in Build Config Files Exploits Trust in PRs: Enhanced Scrutiny and Automated Checks Proposed

#security #malware #opensource #obfuscation

11 min read

Securely Decoding Minified JavaScript Stack Traces Without Third-Party Exposure

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Pavel Kostromin

Pavel Kostromin

Securely Decoding Minified JavaScript Stack Traces Without Third-Party Exposure

#javascript #security #sourcemaps #microservices

11 min read

Lightweight, Offline Text-to-Speech Solution for Node.js Applications

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Pavel Kostromin

Pavel Kostromin

Lightweight, Offline Text-to-Speech Solution for Node.js Applications

#node #tts #offline #lightweight

10 min read

Flattening vs. Nested API Responses: Balancing Frontend Accessibility and Data Structure Integrity

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Pavel Kostromin

Pavel Kostromin

Flattening vs. Nested API Responses: Balancing Frontend Accessibility and Data Structure Integrity

#api #frontend #datastructure #performance

7 min read

Automated Skeleton Loader Generation and Maintenance for Cross-Framework Web Applications

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Pavel Kostromin

Pavel Kostromin

Automated Skeleton Loader Generation and Maintenance for Cross-Framework Web Applications

#skeletonloaders #phantomui #webcomponents #domtraversal

4 min read

Enabling Pin-Based Commenting on Live HTML Iframes: Open-Source, Framework-Agnostic Solution with Adapter Flexibility

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Pavel Kostromin

Pavel Kostromin

Enabling Pin-Based Commenting on Live HTML Iframes: Open-Source, Framework-Agnostic Solution with Adapter Flexibility

#iframes #annotation #collaboration #opensource

8 min read

MDN Documentation Discrepancy: Clarifying Synchronous vs. Asynchronous Event Handler Execution in Browser Event Loop

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Pavel Kostromin

Pavel Kostromin

MDN Documentation Discrepancy: Clarifying Synchronous vs. Asynchronous Event Handler Execution in Browser Event Loop

#javascript #eventloop #browser #asynchronous

9 min read

JavaScript's CPU-Bound Task Management: Introducing Structured Concurrency Tools for Efficient Worker Thread Handling

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Pavel Kostromin

Pavel Kostromin

JavaScript's CPU-Bound Task Management: Introducing Structured Concurrency Tools for Efficient Worker Thread Handling

#javascript #concurrency #workerthreads #puru

11 min read

Developing a Type-Safe, Flexible JavaScript Canvas Layout Engine with Rich Text and Multi-Format Support

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Pavel Kostromin

Pavel Kostromin

Developing a Type-Safe, Flexible JavaScript Canvas Layout Engine with Rich Text and Multi-Format Support

#javascript #canvas #typescript #declarative

8 min read

UQL ORM Expands Entity Definition Options Beyond Decorators to Support Diverse Developer Preferences

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Pavel Kostromin

Pavel Kostromin

UQL ORM Expands Entity Definition Options Beyond Decorators to Support Diverse Developer Preferences

#orm #typescript #decorators #metadata

9 min read

Tailored Social Engineering Attack Installs RAT: Enhance Security Awareness and Multi-Factor Authentication to Mitigate Risk

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Pavel Kostromin

Pavel Kostromin

Tailored Social Engineering Attack Installs RAT: Enhance Security Awareness and Multi-Factor Authentication to Mitigate Risk

#cybersecurity #socialengineering #rat #mfa

9 min read

Improving Web Typography: Addressing Line Breaking, Justification, Hyphenation, and Glyph Measurement Issues in Browsers

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Pavel Kostromin

Pavel Kostromin

Improving Web Typography: Addressing Line Breaking, Justification, Hyphenation, and Glyph Measurement Issues in Browsers

#typography #pretext #a11y #css

12 min read

Secure, Controlled Command Execution Across Platforms: A Solution Without Virtualization or Remote Servers

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Pavel Kostromin

Pavel Kostromin

Secure, Controlled Command Execution Across Platforms: A Solution Without Virtualization or Remote Servers

#security #sandboxing #crossplatform #mitm

17 min read

Streamlining HTTPS Certificate Management for Local Development Across Multiple Frameworks

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Pavel Kostromin

Pavel Kostromin

Streamlining HTTPS Certificate Management for Local Development Across Multiple Frameworks

#https #development #automation #certificates

12 min read

Compromised npm Maintainer Account Publishes Malicious Axios Versions with Backdoor via `plain-crypto-js` Dependency

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Pavel Kostromin

Pavel Kostromin

Compromised npm Maintainer Account Publishes Malicious Axios Versions with Backdoor via `plain-crypto-js` Dependency

#npm #security #axios #backdoor

11 min read

Optimizing Web Text Layout: Reducing Memory Allocations and Main Thread Blocking for Efficient Rendering

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Pavel Kostromin

Pavel Kostromin

Optimizing Web Text Layout: Reducing Memory Allocations and Main Thread Blocking for Efficient Rendering

#performance #textlayout #optimization #caching

11 min read

Preventing Source Code Exposure in Production Builds and npm Packages by Excluding `sourcesContent` from Source Maps

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Pavel Kostromin

Pavel Kostromin

Preventing Source Code Exposure in Production Builds and npm Packages by Excluding `sourcesContent` from Source Maps

#security #sourcemaps #npm #bundlers

13 min read

Axios npm Package Compromised: Unauthorized Versions 1.14.1 and 0.30.4 Published with Harmful Code

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Pavel Kostromin

Pavel Kostromin

Axios npm Package Compromised: Unauthorized Versions 1.14.1 and 0.30.4 Published with Harmful Code

#security #npm #axios #compromise

12 min read

Centralized Documentation Needed for Oxlint and Oxfmt Compatibility with Frameworks and File Types

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Pavel Kostromin

Pavel Kostromin

Centralized Documentation Needed for Oxlint and Oxfmt Compatibility with Frameworks and File Types

#documentation #compatibility #centralization #devrel

5 min read

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