Calculate the real cost to run your JS app or lib to keep good performance. Show error in pull request if the cost exceeds the limit.

Fire native system events from Cypress.

🐯 visx | visualization components

A payment application to demonstrate real-world usage of Cypress testing methods, patterns, and workflows.

All about the Backstage community (Meetups, Sessions etc.)

A curated and opinionated list of resources for Chief Technology Officers, with the emphasis on startups

🎉 A curated list of awesome things related to Vue.js

DEPRECATED: A collection of base configs and CLI wrappers used to speed up development @ Spotify.

Scan for NOTE, OPTIMIZE, TODO, HACK, XXX, FIXME, and BUG comments within your source, and print them to stdout so you can deal with them.

📙 A guide to unit testing in Javascript

✅ The Node.js best practices list (July 2024)

Storybook is the industry standard workshop for building, documenting, and testing UI components in isolation

The largest UI testing best practices list (last update: March 2023)

Scientist-like library for Node.js in TypeScript

Statoscope is a toolkit to analyze and validate webpack bundle

Interactive Redis: A Terminal Client for Redis with AutoCompletion and Syntax Highlighting.

A powerful, flexible, Markdown-based authoring framework.

How to implement Hexagonal architecture in frontend (Javascript/Typescript)

Components from the YouTube show GUI Challenges: accessible, responsive, adaptive and cross browser components.

Lexical is an extensible text editor framework that provides excellent reliability, accessibility and performance.

🐻 Bear necessities for state management in React

Code for "Micro Frontends From Beginner to Expert"

A collection of awesome things regarding Frameworkless

Custom Event/Messaging system for JavaScript inspired by AS3-Signals

🥊 Tiny 200 byte functional event emitter / pubsub.

Backstage is an open framework for building developer portals

Books for people who are or aspire to manage/lead team(s) of software engineers

✨ Monorepo for all the tooling which enables ESLint to support TypeScript

Typesafe cross-platform pubsub event bus ensuring reliable communication between fragments and micro frontends.

Learn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards.