Artem Zakharchenko

Comprehensive language-agnostic guidelines on variables naming. Home of the A/HC/LC pattern.

A practical written guide to naming variables and functions clearly in any programming language, covering naming rules and a structured A/HC/LC pattern, documentation only, no software to install.

Gracefully handle Promises using async/await without try/catch.

Primitives for building ridiculously type-safe event-based systems.

Build declarative, responsive layouts in React using CSS Grid.

Functional reactive forms. Multi-layer validation, custom styling, field grouping, reactive props, and much more.

Arbitrary change history management in JavaScript.

Authentication in Playwright using personas.

Learn how URLs work by visually inspecting their structure.

A Vite plugin to profile Vitest test runs.

Example of testing React Server Components in Next.js with MSW.

@kettanaito's personal blog.

Nako is a premium dark color theme for Visual Studio Code.

A library for usage example-driven in-browser testing of your code.

Build-time in-browser Open Graph image generation for Remix.

Movie App for the "Mocking REST and GraphQL APIs with MSW" course on Egghead.

Minimal example of using Mock Service Worker with Remix. Both server- and client-side.

An Evil Rabbit theme for Zed.

A template repository for a superb library written in TypeScript (ESM/UMD/CJS, tree-shaking, CI).

Documentation website for Atomic layout library.

Fancy interactive preview of your JavaScript data.

Vite plugin for testing React Server Components in Vitest Browser Mode.

Create WebAuthn Passkeys for testing your applications.

Form prototyping framework for React Advanced Form. Tailor production-ready forms in a matter of minutes. Write the logic, do the styles later.

Production-ready setup of GraphQL Express server based on Apollo Server.

Utilities to work with protocol handlers (like "vscode://") on the web.

Wait for a connection at the given target without making any requests.

Turborepo with a Remix app and Prisma.

Teardown API for testing file system-dependent code.

Source code for the "Practical Guide To Custom Jest Matchers" article.

Utilities for testing NextJS applications.

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W3C specification-compliant implementation of Service Workers for Node.js.

On-demand runtime webpack compilations over HTTP.

A test framework extension to support resources teardown and cleanup in flat tests.

Documentation for React Advanced Form.

A frameworkless, barebones example of RSC usage.

Strongly-typed collection of tools to make your Redux workflow more dynamic.

"ReadableStream" polyfill based on the eponymous implementation from Node.js.

Comprehensive function names suggestions based on language analyzis. Say what your function should do, get a function name back.

Dependency-free VanillaJS way to determine the visibility of DOM elements.

Accumulate multiple events, and their data, from different sources into a single pool.

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Utilities for faster GraphQL + MongoDB integration.

A tug-o-war game with Remix, WebSockets, and MSW.

This is a Remix Stack with the foundational things setup and configured for you to hit the ground running on your next EPIC idea.

Express middleware for creating GraphQL query shortlinks to GraphiQL.

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Capture announcements of ARIA live regions

Demo for the "remix-og-image" plugin.

Understand React Server Components and Server Actions by building a framework with them.

A reliable compressor and decompressor for Brotli, supporting node & browsers via wasm

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Code at the speed of thought – Zed is a high-performance, multiplayer code editor from the creators of Atom and Tree-sitter.

Astro template for CodeSandbox Projects

The content behind MDN Web Docs

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Webpack plugin that derives a JSON manifest from a directory to enable file system-based routing.

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Example of registering multiple Service Workers on a single scope.

GitBook documentation for Atomic layout library.

A utility function to create custom prop type validators for React with ".isRequired" chaining built in.

Build Better Websites. Create modern, resilient user experiences with web fundamentals.

A reference implementation of GraphQL for JavaScript

Example repository with unit testing an ES6 code with Jest.

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Remix template for CodeSandbox Projects

Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API.

Created with CodeSandbox

HTTP server mocking and expectations library for Node.js

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Next generation testing framework powered by Vite.

TypeScript-first schema validation with static type inference

Convert Word documents (.docx files) to HTML

Performance analysis of Jest (JSDOM) compared to Vitest Browser Mode.

Exercises for the Mocking WebSocket APIs with MSW on Egghead.

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Example project of using Test Analytics from Codecov with Vitest Browser Mode.

Declarative routing for React

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MSW demo app

Continuous (Preview) Releases for your libraries!

A reproduction scenario for the Undici error decompressing "gzip, deflate" responses

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The workshop app for all workshops on EpicWeb.dev

An HTTP/1.1 client, written from scratch for Node.js

Google Chrome extension for React Advanced Form.

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A template for EpicWeb.dev workshops

Experiment on using AsyncLocalStorage to solve concurrency issues with MSW.

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⛅️ Home to Wrangler, the CLI for Cloudflare Workers®

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docs site for *-testing-library

A service to render js for web scraping hosted on fly.io

Web standard IO APIs implemented for nodejs

Respond to "fetch" event with a ReadableStream.

The highly customizable and versatile GraphQL client with which you add on features like normalized caching as you grow.

Command line tool to create self signed SSL certificate

An online IDE for rapid web development

A new Node.js resource built using Gatsby.js with React.js, TypeScript, and Remark.

Visual Studio Code extension for Prettier

Prettier is an opinionated code formatter.

Turn a path string such as `/user/:name` into a regular expression

The React Framework

A library/tool for validating JavaScript code in Markdown documentation

Build a ReactJS App workshop

Turn-based dice game just for fun.

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A repo to demonstrate msw@next issues with Jest

This is the alpha version of the "msw" library. This package is no longer maintained. Please see the "msw" instead.

A workshop for testing react applications

Reproduction repository of Jest unable to run a test suite in a whitelisted "node_modules" directory.

An issue when a spawned NextJS application is not considered a child process in Node.js.

An abstraction for all my React workshops

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🐐 Simple and complete React DOM testing utilities that encourage good testing practices.

Example of Tree Shaking in webpack 2.0/3.0

Hand-tailored WordPress theme for furniture supplier in Ukraine - EPSI.