21 Posts
2025-02-09
Understanding Intersection Types in TypeScript
A deep dive into intersection types in TypeScript, exploring how they work with primitives and objects.
2025-02-08
TypeScript Utility Types with Discriminated Unions
How to effectively use TypeScript utility types like Pick and Omit with discriminated unions by leveraging conditional types.
2024-09-04
Type in Runtime with TypeScript
Use TypeScript type in runtime.
2024-08-01
This Component is rendered on the client or server side in Remix?
Code reading of React.Children API
2024-04-26
Display MDX Metadata on Your Next.js Page
export metadata from MDX files and display it on your page using only @next/mdx
2024-02-21
Experimental Tiny Implementation of Suspense and ErrorBoundary in SwiftUI
2024-01-14
Type-Level Arithmetic in TypeScript, type Year2024 = Add<2000, 24>
Introduction to Type-Level Addition in TypeScript using Type Manipulation
2023-10-16
rscq, CLI Parser for React Server Component Payloads
I wanted to parse React Server Component Payloads. So I created rscq.
2023-10-10
RSC Payload & Serialized Props
React Server Components Payload and Serialized Props
2023-09-30
RSC Memo
If I create my own service using RSC, I will use these tips.
2023-01-19
CallKit with AWS chime.
Report for developing ios application with callkit and aws chime, only incoming call.
2023-01-04
Rust memo1
String Slice
2022-12-21
ドイツのトリ Advent Calendar 2022
Advent Calendar 2022
2022-02-26
麻雀君
TypeScriptの型だけで、麻雀の点数計算を行う
2022-01-19
Use enum like literal type.
OpenAPI is a tool for schema first development. They serves several generators for typescript, like typescript-axios. Enum is supported, but not literal type. I will introduce tips using enum as a literal type.
2021-12-02
First Step of Testing React Form.
I want to write test codes for React forms. 'react-hook-form' is used in this React app. I will test it with 'jest' and 'testing-library'.
2021-09-29
TestContainer testing with Jest, NodeJS.
Testing NodeJS application connects to PostgreSQL with Docker, Jest and TestContainer.
2021-04-01
Implementing Video Cropping to size of Preview.
Implementation cropping video to the size of preview for image processing, like QR Reading or OCR with captureDevicePointConverted API.
2021-03-23
React.Children API
2021-03-22
Hello World
Tech blog with Gatsby.js
Typescript Memo
Memo for type techniques of Typescript.