doc: Update typescript.md

This commit is contained in:
jaywcjlove 2022-12-03 17:44:28 +08:00
parent d75cda78f5
commit 3f191de637
3 changed files with 34 additions and 5 deletions

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@ -376,7 +376,7 @@ Quick Reference
[winnerzr01.github.io](https://winnerzr01.github.io/Quick-Reference/index.html)<!--rehype:target=_blank&class=contributing&data-info=👆需要梯子-->
[ref.isteed.cc](https://ref.isteed.cc/)<!--rehype:target=_blank-->
[quickref.hestudio.xyz](https://quickref.hestudio.xyz)<!--rehype:target=_blank-->
<!--rehype:class=home-card home-links&style=margin:2.2rem 0;display: flex;justify-content: center;gap: 1rem;flex-wrap: wrap;-->
<!--rehype:class=home-card home-links-->
如果你有资源,可以很方便部署 web 版,这非常简单,只需要克隆 [gh-pages](https://github.com/jaywcjlove/reference/tree/gh-pages) 分支代码到你的静态服务就可以了,还可以使用 [docker](https://hub.docker.com/r/wcjiang/reference) 快捷部署 web 版。

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@ -18,6 +18,7 @@ React 是一个用于构建用户界面的 JavaScript 库
- [React 官方文档](https://reactjs.org/) _(reactjs.org)_
- [Styled Components 备忘清单](./styled-components.md) _(jaywcjlove.github.io)_
- [TypeScript JSX 备忘清单](./typescript.md#jsx) _(jaywcjlove.github.io)_
```js
import {createRoot} from 'react-dom/client'

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@ -1,6 +1,11 @@
TypeScript 备忘清单
===
[![NPM version](https://img.shields.io/npm/v/typescript.svg?style=flat)](https://www.npmjs.com/package/typescript)
[![Downloads](https://img.shields.io/npm/dm/typescript.svg?style=flat)](https://www.npmjs.com/package/typescript)
[![Repo Dependents](https://badgen.net/github/dependents-repo/Microsoft/TypeScript)](https://github.com/Microsoft/TypeScript/network/dependents)
[![Github repo](https://badgen.net/badge/icon/Github?icon=github&label)](https://github.com/Microsoft/TypeScript)
包含最重要基础、泛型、方法、class 等 TypeScript 强类型编程语言语法的快速参考备忘单。初学者的完整快速参考。
入门 Interface
@ -1265,6 +1270,24 @@ class Select<T> extends React.Component<SelectProps<T>, any> {}
const Form = () => <Select<string> items={['a', 'b']} />;
```
### 函数组件 ref
<!--rehype:wrap-class=col-span-3-->
```tsx
import { FC, ForwardedRef, forwardRef, PropsWithRef } from "react";
function InternalProgress(props: ProgressProps, ref?: ForwardedRef<HTMLDivElement>) {
return (
<div {...props} ref={ref}>
{props.children}
</div>
)
}
export interface ProgressProps extends React.DetailedHTMLProps<React.HTMLAttributes<HTMLDivElement>, HTMLDivElement> {}
export const Progress: FC<PropsWithRef<ProgressProps>> = forwardRef<HTMLDivElement>(InternalProgress)
```
各种各样的技巧
---
@ -1331,16 +1354,21 @@ const point = [3, 4] as const
```ts
type Colors = 'red' | 'green' | 'blue';
type RGB = [
red: number,
green: number,
blue: number
];
type Palette = Record<Colors, string | RGB>
type RGB = [red: number, green: number, blue: number];
const palette: Record<Colors, string | RGB> = {
const palette: Palette = {
red: [255, 0, 0],
green: '#00ff00',
blue: [0, 0, 255],
};
// 通常的方式会推导出 redComponent 为 string | number | undefined
// 通常的方式会推导出 redComponent 为
// => string | number | undefined
const redComponent = palette.red.at(0);
```