8 Posts
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
Code reading of React.Children API
2021/03/22
Hello World
Tech blog with Gatsby.js
Typescript Memo
Memo for type techniques of Typescript.
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