Zhentiw - 博客园

2020年5月12日

[React Testing] Using __mocks__ to mock the promise based API

摘要： Folder structure: | __mocks__ | api | pet.js | src | api | pet.js __mocks__/api/pet.js // __mocks__/api/pet.js import { readFileSync } from 'fs' impor 阅读全文

posted @ 2020-05-12 18:10 Zhentiw 阅读(205) 评论(0) 推荐(0)

[CSS] Place Images with object-position

摘要： object-position controls the placement of img and video media inside containing boxes. It's a partner property to object-fit. Using the two properties 阅读全文

posted @ 2020-05-12 14:32 Zhentiw 阅读(133) 评论(0) 推荐(0)

[Tools] Make a zsh function alias to enforce using yarn commands when in a yarn project

摘要： When you or your team work on various npm or yarn projects it gets hard to remember which one is which. This lesson shows you how to create a custom n 阅读全文

posted @ 2020-05-12 14:15 Zhentiw 阅读(149) 评论(0) 推荐(0)

2020年5月9日

[Compose] Ex. FP-Box Chain

摘要： const Box = x => ({ map: f => Box(f(x)), chain: f => f(x), fold: f => f(x), toString: () => `Box(${x})` }) // Exercise: Box // Goal: Refactor each exa 阅读全文

posted @ 2020-05-09 03:40 Zhentiw 阅读(136) 评论(0) 推荐(0)

2020年5月7日

[React] useMemo and React.memo

摘要： As a beginner of React, might have the confuses with 'useMemo' and 'React.memo': 'useMemo': When using functional components in React we may run into 阅读全文

posted @ 2020-05-07 20:06 Zhentiw 阅读(340) 评论(0) 推荐(0)

[Functional Programming] Coding Monoids with real task

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posted @ 2020-05-07 18:22 Zhentiw 阅读(0) 评论(0) 推荐(0)

2020年5月5日

[React] Setup an API Proxy in Create React App

摘要： For development, we'll be using a separate server address to reach our REST endpoints. In a production build, this will likely be a different address, 阅读全文

posted @ 2020-05-05 02:55 Zhentiw 阅读(180) 评论(0) 推荐(0)

2020年5月4日

[Node] Prepare a package to be published to npm

摘要： In package.json file: "prepare": "npm run build", "postpublish": "git push --tags", "prepare": make sure we don't forget to run build before publish t 阅读全文

posted @ 2020-05-04 18:54 Zhentiw 阅读(175) 评论(0) 推荐(0)

[React Testing] Test your Custom Hook Module with react-hooks-testing-library

摘要： It's always important to test your code, especially if you're open-sourcing it for others to use. In this video, we'll learn how to use react-hooks-te 阅读全文

posted @ 2020-05-04 18:47 Zhentiw 阅读(213) 评论(0) 推荐(0)

[React Testing] Test React Portals with within from React Testing Library

摘要： When you use a React Portal, much of your component can be rendered outside the main DOM tree. Let’s see how we can use utilities provided by React Te 阅读全文

posted @ 2020-05-04 02:10 Zhentiw 阅读(702) 评论(0) 推荐(0)

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