Beginner's Series: Introduction to JavaScript (Node.js)

👻 Primitive and flexible state management for React

全国の町丁目レベル（277,191件）の住所データのオープンデータ

A tool to help migrate JavaScript code quickly and conveniently to TypeScript

A tutorial/template repository to explain how to create your eslint plugins

Cheatsheets for experienced React developers getting started with TypeScript

Format input text content when you are typing...

🍱 Y Combinator for Non-programmers: A Wild Introduction to Computer Science

Simple and modern async event emitter

📗🌐 🚢 Comprehensive and exhaustive JavaScript & Node.js testing best practices (August 2025)

Code for tutorial on how to animate page transitions in Gatsby

Tool for shell commands execution, visualization and alerting. Configured with a simple YAML file.

json incremental digger

The lazier way to manage everything docker

Source Han Mono | 思源等宽 | 思源等寬 | 思源等寬 香港 | 源ノ等幅 | 본모노

Source Han Sans | 思源黑体 | 思源黑體 | 思源黑體 香港 | 源ノ角ゴシック | 본고딕

はてな研修用教科書

Command-line program to download videos from YouTube.com and other video sites

webpack-less frontend with service-worker

Reactive Virtual DOM for Android.

Light-weight, faster datetime formatter for modern browsers.

😮 A surprisingly easy API server and generator in gRPC and Go

The Ruby Programming Language

Ruby on Rails

Profiler for your development and production Ruby rack apps.

Code supporting the CVPR 2017 paper "Learning Cross-modal Embeddings for Cooking Recipes and Food Images"