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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="renderer" content="webkit">
<meta http-equiv="X-UA-Compatible" content="IE=edge" >
<link rel="dns-prefetch" href="https://sticky-finger.github.io">
<title>学习Blog</title>
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
<meta name="keywords" content="博客">
<meta property="og:type" content="website">
<meta property="og:title" content="学习Blog">
<meta property="og:url" content="https://sticky-finger.github.io/index.html">
<meta property="og:site_name" content="学习Blog">
<meta property="og:locale" content="zh-Hans">
<meta name="twitter:card" content="summary">
<link rel="alternative" href="/atom.xml" title="学习Blog" type="application/atom+xml">
<link rel="icon" href="/favicon.png">
<link rel="stylesheet" type="text/css" href="/./main.fc7158.css">
<style type="text/css">
#container.show {
background: linear-gradient(200deg,#a0cfe4,#e8c37e);
}
</style>
</head>
<body>
<div id="container" q-class="show:isCtnShow">
<canvas id="anm-canvas" class="anm-canvas"></canvas>
<div class="left-col" q-class="show:isShow">
<div class="overlay" style="background: #4d4d4d"></div>
<div class="intrude-less">
<header id="header" class="inner">
<a href="/" class="profilepic">
<img src="assets/sxy_avatar.jpg" class="js-avatar">
</a>
<hgroup>
<h1 class="header-author"><a href="/">Sticky-Finger</a></h1>
</hgroup>
<p class="header-subtitle">随便写写</p>
<nav class="header-menu">
<ul>
<li><a href="/">主页</a></li>
</ul>
</nav>
<nav class="header-smart-menu">
<a q-on="click: openSlider(e, 'innerArchive')" href="javascript:void(0)" target="_self">所有文章</a>
<a q-on="click: openSlider(e, 'aboutme')" href="javascript:void(0)" target="_self">关于我</a>
</nav>
<nav class="header-nav">
<div class="social">
<a class="github" target="_blank" href="https://github.com/Sticky-Finger" title="github"><i class="icon-github"></i></a>
<!-- <a class="github" href="https://github.com/Sticky-Finger" target="_blank" rel="noopener" title="github"><i class="icon-github"></i></a> -->
<a class="zhihu" target="_blank" href="https://www.zhihu.com/people/si-jia-29/activities" title="zhihu"><i class="icon-zhihu"></i></a>
<!-- <a class="zhihu" href="https://www.zhihu.com/people/si-jia-29/activities" target="_blank" rel="noopener" title="zhihu"><i class="icon-zhihu"></i></a> -->
</div>
</nav>
</header>
</div>
</div>
<div class="mid-col" q-class="show:isShow,hide:isShow|isFalse">
<nav id="mobile-nav">
<div class="overlay js-overlay" style="background: #4d4d4d"></div>
<div class="btnctn js-mobile-btnctn">
<div class="slider-trigger list" q-on="click: openSlider(e)"><i class="icon icon-sort"></i></div>
</div>
<div class="intrude-less">
<header id="header" class="inner">
<div class="profilepic">
<img src="assets/sxy_avatar.jpg" class="js-avatar">
</div>
<hgroup>
<h1 class="header-author js-header-author">Sticky-Finger</h1>
</hgroup>
<p class="header-subtitle"><i class="icon icon-quo-left"></i>随便写写<i class="icon icon-quo-right"></i></p>
<nav class="header-nav">
<div class="social">
<a class="github" target="_blank" href="https://github.com/Sticky-Finger" title="github"><i class="icon-github"></i></a>
<!-- <a class="github" href="https://github.com/Sticky-Finger" target="_blank" rel="noopener" title="github"><i class="icon-github"></i></a> -->
<a class="zhihu" target="_blank" href="https://www.zhihu.com/people/si-jia-29/activities" title="zhihu"><i class="icon-zhihu"></i></a>
<!-- <a class="zhihu" href="https://www.zhihu.com/people/si-jia-29/activities" target="_blank" rel="noopener" title="zhihu"><i class="icon-zhihu"></i></a> -->
</div>
</nav>
<nav class="header-menu js-header-menu">
<ul style="width: 50%">
<li style="width: 100%"><a href="/">主页</a></li>
</ul>
</nav>
</header>
</div>
<div class="mobile-mask" style="display:none" q-show="isShow"></div>
</nav>
<div id="wrapper" class="body-wrap">
<div class="menu-l">
<div class="canvas-wrap">
<canvas data-colors="#eaeaea" data-sectionHeight="100" data-contentId="js-content" id="myCanvas1" class="anm-canvas"></canvas>
</div>
<div id="js-content" class="content-ll">
<article id="post-46-严格策略" class="article article-type-post article-index" itemscope itemprop="blogPost">
<div class="article-inner">
<header class="article-header">
<h1 itemprop="name">
<a class="article-title" href="/2019/12/04/46-%E4%B8%A5%E6%A0%BC%E7%AD%96%E7%95%A5/">46 严格策略</a>
</h1>
<a href="/2019/12/04/46-%E4%B8%A5%E6%A0%BC%E7%AD%96%E7%95%A5/" class="archive-article-date">
<time datetime="2019-12-04T10:54:07.000Z" itemprop="datePublished"><i class="icon-calendar icon"></i>2019-12-04</time>
</a>
</header>
<div class="article-entry" itemprop="articleBody">
<p>执行最严格的类型检查规则，并处理报错</p>
<p>// tsconfig.json</p>
<p>{<br> …<br> “compilerOptions”: {<br> …<br> “strict”: true,<br> “noImplicitAny”: true,<br> …<br> /* Additional Checks */<br> “noUnusedLocals”: true,<br> “noUnusedParameters”: true,<br> “noImplicitReturns”: true,<br> “noFallthroughCasesInSwitch”: true,<br> },<br>}<br>报错增多，处理报错</p>
</div>
<div class="article-info article-info-index">
<div class="article-tag tagcloud">
<i class="icon-price-tags icon"></i>
<ul class="article-tag-list">
<li class="article-tag-list-item">
<a href="javascript:void(0)" target="_blank" rel="noopener" class="js-tag article-tag-list-link color1">TypeScript</a>
</li>
</ul>
</div>
<p class="article-more-link">
<a class="article-more-a" href="/2019/12/04/46-%E4%B8%A5%E6%A0%BC%E7%AD%96%E7%95%A5/">展开全文 >></a>
</p>
<div class="clearfix"></div>
</div>
</div>
</article>
<aside class="wrap-side-operation">
<div class="mod-side-operation">
<div class="jump-container" id="js-jump-container" style="display:none;">
<a href="javascript:void(0)" target="_blank" rel="noopener" class="mod-side-operation__jump-to-top">
<i class="icon-font icon-back"></i>
</a>
<div id="js-jump-plan-container" class="jump-plan-container" style="top: -11px;">
<i class="icon-font icon-plane jump-plane"></i>
</div>
</div>
</div>
</aside>
<article id="post-45-宽松策略" class="article article-type-post article-index" itemscope itemprop="blogPost">
<div class="article-inner">
<header class="article-header">
<h1 itemprop="name">
<a class="article-title" href="/2019/12/04/45-%E5%AE%BD%E6%9D%BE%E7%AD%96%E7%95%A5/">45 宽松策略</a>
</h1>
<a href="/2019/12/04/45-%E5%AE%BD%E6%9D%BE%E7%AD%96%E7%95%A5/" class="archive-article-date">
<time datetime="2019-12-04T10:53:17.000Z" itemprop="datePublished"><i class="icon-calendar icon"></i>2019-12-04</time>
</a>
</header>
<div class="article-entry" itemprop="articleBody">
<blockquote>
<p>将js、jsx文件重命名为ts、tsx文件，并且使用最宽松的类型检查规则，在不修改代码的前提下，是我们的工程能够跑起来</p>
</blockquote>
<a class="article-more-a" href="/2019/12/04/45-%E5%AE%BD%E6%9D%BE%E7%AD%96%E7%95%A5/#more">more >></a>
</div>
<div class="article-info article-info-index">
<div class="article-tag tagcloud">
<i class="icon-price-tags icon"></i>
<ul class="article-tag-list">
<li class="article-tag-list-item">
<a href="javascript:void(0)" target="_blank" rel="noopener" class="js-tag article-tag-list-link color1">TypeScript</a>
</li>
</ul>
</div>
<p class="article-more-link">
<a class="article-more-a" href="/2019/12/04/45-%E5%AE%BD%E6%9D%BE%E7%AD%96%E7%95%A5/">展开全文 >></a>
</p>
<div class="clearfix"></div>
</div>
</div>
</article>
<aside class="wrap-side-operation">
<div class="mod-side-operation">
<div class="jump-container" id="js-jump-container" style="display:none;">
<a href="javascript:void(0)" target="_blank" rel="noopener" class="mod-side-operation__jump-to-top">
<i class="icon-font icon-back"></i>
</a>
<div id="js-jump-plan-container" class="jump-plan-container" style="top: -11px;">
<i class="icon-font icon-plane jump-plane"></i>
</div>
</div>
</div>
</aside>
<article id="post-44-共存策略" class="article article-type-post article-index" itemscope itemprop="blogPost">
<div class="article-inner">
<header class="article-header">
<h1 itemprop="name">
<a class="article-title" href="/2019/12/04/44-%E5%85%B1%E5%AD%98%E7%AD%96%E7%95%A5/">44 共存策略</a>
</h1>
<a href="/2019/12/04/44-%E5%85%B1%E5%AD%98%E7%AD%96%E7%95%A5/" class="archive-article-date">
<time datetime="2019-12-04T10:52:30.000Z" itemprop="datePublished"><i class="icon-calendar icon"></i>2019-12-04</time>
</a>
</header>
<div class="article-entry" itemprop="articleBody">
<p>将一个js项目逐步迁移到ts</p>
<p>共存策略:原来的js代码不动，新增的代码用ts编写</p>
<a class="article-more-a" href="/2019/12/04/44-%E5%85%B1%E5%AD%98%E7%AD%96%E7%95%A5/#more">more >></a>
</div>
<div class="article-info article-info-index">
<div class="article-tag tagcloud">
<i class="icon-price-tags icon"></i>
<ul class="article-tag-list">
<li class="article-tag-list-item">
<a href="javascript:void(0)" target="_blank" rel="noopener" class="js-tag article-tag-list-link color1">TypeScript</a>
</li>
</ul>
</div>
<p class="article-more-link">
<a class="article-more-a" href="/2019/12/04/44-%E5%85%B1%E5%AD%98%E7%AD%96%E7%95%A5/">展开全文 >></a>
</p>
<div class="clearfix"></div>
</div>
</div>
</article>
<aside class="wrap-side-operation">
<div class="mod-side-operation">
<div class="jump-container" id="js-jump-container" style="display:none;">
<a href="javascript:void(0)" target="_blank" rel="noopener" class="mod-side-operation__jump-to-top">
<i class="icon-font icon-back"></i>
</a>
<div id="js-jump-plan-container" class="jump-plan-container" style="top: -11px;">
<i class="icon-font icon-plane jump-plane"></i>
</div>
</div>
</div>
</aside>
<article id="post-41-搭建Vue开发环境" class="article article-type-post article-index" itemscope itemprop="blogPost">
<div class="article-inner">
<header class="article-header">
<h1 itemprop="name">
<a class="article-title" href="/2019/12/04/41-%E6%90%AD%E5%BB%BAVue%E5%BC%80%E5%8F%91%E7%8E%AF%E5%A2%83/">41 搭建Vue开发环境</a>
</h1>
<a href="/2019/12/04/41-%E6%90%AD%E5%BB%BAVue%E5%BC%80%E5%8F%91%E7%8E%AF%E5%A2%83/" class="archive-article-date">
<time datetime="2019-12-04T10:41:10.000Z" itemprop="datePublished"><i class="icon-calendar icon"></i>2019-12-04</time>
</a>
</header>
<div class="article-entry" itemprop="articleBody">
<h1 id="一、基于hello-world工程"><a href="#一、基于hello-world工程" class="headerlink" title="一、基于hello world工程"></a>一、基于hello world工程</h1><ul>
<li><p>1)安装vue:<code>npm i vue</code></p>
<ul>
<li>vue自带了声明文件，不用额外装</li>
</ul>
</li>
<li><p>2)/src/index.ts</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br></pre></td><td class="code"><pre><span class="line">import Vue from 'vue';</span><br><span class="line"></span><br><span class="line">let app1 = new Vue({</span><br><span class="line"> el: '.app',</span><br><span class="line"> data: {</span><br><span class="line"> name: 'TypeScript',</span><br><span class="line"> },</span><br><span class="line"> template: `<h1>Hello {{ name }}</h1>`,</span><br><span class="line">});</span><br></pre></td></tr></table></figure>
</li>
<li><p>3)<code>npm start</code>运行该项目</p>
<ul>
<li>浏览器console提示:当前使用的版本是一个运行时版本，缺少编译器。需要在webpack中引入一个完全的版本</li>
</ul>
</li>
</ul>
<a class="article-more-a" href="/2019/12/04/41-%E6%90%AD%E5%BB%BAVue%E5%BC%80%E5%8F%91%E7%8E%AF%E5%A2%83/#more">more >></a>
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<article id="post-38-搭建服务端开发环境" class="article article-type-post article-index" itemscope itemprop="blogPost">
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</h1>
<a href="/2019/12/04/38-%E6%90%AD%E5%BB%BA%E6%9C%8D%E5%8A%A1%E7%AB%AF%E5%BC%80%E5%8F%91%E7%8E%AF%E5%A2%83/" class="archive-article-date">
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<p>基于express搭建</p>
<ul>
<li><p>1)全局安装express应用生成器</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">npm i -g express-generator</span><br></pre></td></tr></table></figure>
</li>
<li><p>2)生成一个express应用</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">express ts-express</span><br></pre></td></tr></table></figure>
</li>
<li><p>3)进入该项目目录，安装依赖</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">cd ts-express</span><br><span class="line">npm i</span><br></pre></td></tr></table></figure>
</li>
</ul>
<blockquote>
<p>一般的项目到此就搭建好了（可以运行npm start启动），ts的还需要以下步骤</p>
</blockquote>
<ul>
<li>4)安装ts</li>
</ul>
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<a class="article-title" href="/2019/12/04/37-Redux%E4%B8%8E%E7%B1%BB%E5%9E%8B/">37 Redux与类型</a>
</h1>
<a href="/2019/12/04/37-Redux%E4%B8%8E%E7%B1%BB%E5%9E%8B/" class="archive-article-date">
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<h2 id="安装了哪些包"><a href="#安装了哪些包" class="headerlink" title="安装了哪些包"></a>安装了哪些包</h2><ul>
<li>redux</li>
<li>react-redux</li>
<li>redux-thunk</li>
</ul>
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<article id="post-36-列表渲染与路由" class="article article-type-post article-index" itemscope itemprop="blogPost">
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</h1>
<a href="/2019/12/04/36-%E5%88%97%E8%A1%A8%E6%B8%B2%E6%9F%93%E4%B8%8E%E8%B7%AF%E7%94%B1/" class="archive-article-date">
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<h2 id="列表渲染"><a href="#列表渲染" class="headerlink" title="列表渲染"></a>列表渲染</h2><p>问题：在使用antd的Form时，用Form.create()(表单组件)注意事项：</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br></pre></td><td class="code"><pre><span class="line">// Props</span><br><span class="line">interface Props extends FormComponentProps {</span><br><span class="line"> onDataChange(data: EmployeeResponse): void;</span><br><span class="line">}</span><br><span class="line"></span><br><span class="line">// Component</span><br><span class="line">class QueryForm extends Component<Props, EmployeeRequest> {</span><br><span class="line">...</span><br><span class="line">}</span><br><span class="line"></span><br><span class="line">// Form.create</span><br><span class="line">const WrappedQueryForm = Form.create<Props>({})(QueryForm);</span><br></pre></td></tr></table></figure>
<ul>
<li>不使用Form.create则没有这些：<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br></pre></td><td class="code"><pre><span class="line">// Props</span><br><span class="line">interface Props {</span><br><span class="line"> onDataChange(data: EmployeeResponse): void;</span><br><span class="line">}</span><br><span class="line"></span><br><span class="line">// Component</span><br><span class="line">class QueryForm extends Component<Props, EmployeeRequest> {</span><br><span class="line">...</span><br><span class="line">}</span><br><span class="line"></span><br><span class="line">// export</span><br><span class="line">export default QueryForm;</span><br></pre></td></tr></table></figure>
</li>
</ul>
<h2 id="添加路由"><a href="#添加路由" class="headerlink" title="添加路由"></a>添加路由</h2>
<a class="article-more-a" href="/2019/12/04/36-%E5%88%97%E8%A1%A8%E6%B8%B2%E6%9F%93%E4%B8%8E%E8%B7%AF%E7%94%B1/#more">more >></a>
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<article id="post-35-事件处理与数据请求" class="article article-type-post article-index" itemscope itemprop="blogPost">
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</h1>
<a href="/2019/12/04/35-%E4%BA%8B%E4%BB%B6%E5%A4%84%E7%90%86%E4%B8%8E%E6%95%B0%E6%8D%AE%E8%AF%B7%E6%B1%82/" class="archive-article-date">
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<h2 id="搭建界面"><a href="#搭建界面" class="headerlink" title="搭建界面"></a>搭建界面</h2><p>目录结构：</p>
<ul>
<li>src/<ul>
<li>components/ <ul>
<li>employee/ #员工界面 </li>
<li>App.tsx</li>
</ul>
</li>
</ul>
</li>
</ul>
<h2 id="代码"><a href="#代码" class="headerlink" title="代码"></a>代码</h2><ul>
<li>/src/components/employee/QueryForm.</li>
</ul>
<h2 id="过程"><a href="#过程" class="headerlink" title="过程"></a>过程</h2><ul>
<li>UI组件添加事件和状态（react的state），状态的类型（就是接口请求和响应数据的格式的一部分），将其抽离出来抽象成interface</li>
</ul>
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</h1>
<a href="/2019/12/04/34-%E7%BB%84%E4%BB%B6%E4%B8%8E%E7%B1%BB%E5%9E%8B%EF%BC%882%EF%BC%89%EF%BC%9A%E9%AB%98%E9%98%B6%E7%BB%84%E4%BB%B6%E4%B8%8EHooks/" class="archive-article-date">
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<table>
<thead>
<tr>
<th>组件复用方式</th>
<th>优势</th>
<th>劣势</th>
<th>状态</th>
</tr>
</thead>
<tbody><tr>
<td>类组件（class）</td>
<td>发展时间长，接受度广泛</td>
<td>只能继承父类</td>
<td>传统模式，长期存在</td>
</tr>
<tr>
<td>Mixin</td>
<td>可以复制任意对象的任意多个方法</td>
<td>组件相互依赖、耦合，可能产生冲突，不利于维护</td>
<td>被抛弃</td>
</tr>
<tr>
<td>高阶组件（HOC）</td>
<td>利用装饰器模式，在不改变组件的基础上，动态地为其添加新的能力</td>
<td>嵌套过多调试困难，需要遵守某些约定（不改变原始组件，透传props等）</td>
<td>能力强大，应用广泛</td>
</tr>
<tr>
<td>Hooks</td>
<td>代替class，多个Hooks互不影响，避免嵌套地狱，开发效率高</td>
<td>切换到新思维需要成本</td>
<td>React未来</td>
</tr>
</tbody></table>
<a class="article-more-a" href="/2019/12/04/34-%E7%BB%84%E4%BB%B6%E4%B8%8E%E7%B1%BB%E5%9E%8B%EF%BC%882%EF%BC%89%EF%BC%9A%E9%AB%98%E9%98%B6%E7%BB%84%E4%BB%B6%E4%B8%8EHooks/#more">more >></a>
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<article id="post-33-组件与类型（1）：函数组件与类组件" class="article article-type-post article-index" itemscope itemprop="blogPost">
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</h1>
<a href="/2019/12/04/33-%E7%BB%84%E4%BB%B6%E4%B8%8E%E7%B1%BB%E5%9E%8B%EF%BC%881%EF%BC%89%EF%BC%9A%E5%87%BD%E6%95%B0%E7%BB%84%E4%BB%B6%E4%B8%8E%E7%B1%BB%E7%BB%84%E4%BB%B6/" class="archive-article-date">
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<h2 id="函数组件"><a href="#函数组件" class="headerlink" title="函数组件"></a>函数组件</h2><ul>
<li><p>React.FC</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br></pre></td><td class="code"><pre><span class="line">import React from 'react';</span><br><span class="line">import Button from 'antd';</span><br><span class="line"></span><br><span class="line">interface Greeting {</span><br><span class="line"> name: string;</span><br><span class="line">}</span><br><span class="line"></span><br><span class="line">const Hello: React.FC<Greeting> = (props) => <Button>Hello {props.name}</Button></span><br></pre></td></tr></table></figure></li>
<li><p>使用React.FC和不使用的区别：</p>
<ul>
<li>React.FC优点：<ul>
<li>1）隐含声明了children属性 <figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br></pre></td><td class="code"><pre><span class="line">const Hello: React.FC<Greeting> = ({</span><br><span class="line"> ...,</span><br><span class="line"> children,</span><br><span class="line">}) => <Button>Hello {props.name}</Button></span><br></pre></td></tr></table></figure></li>
<li>2）函数组件定义静态属性时，会给一些自动提示<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br></pre></td><td class="code"><pre><span class="line">interface Greeting {</span><br><span class="line"> name: string;</span><br><span class="line"> // ！使用React.FC定义的函数组件，在使用默认属性时，props的属性类型声明，要加上`可选符号--?`</span><br><span class="line"> // 不使用React.FC定义的，没有这种问题</span><br><span class="line"> firstName?: string;</span><br><span class="line"> lastName?: string;</span><br><span class="line">}</span><br><span class="line"></span><br><span class="line">const Hello: React.FC<Greeting> = ...</span><br><span class="line"></span><br><span class="line">Hello.defaultProps = {</span><br><span class="line"> firstName: '',</span><br><span class="line"> lastName: '',</span><br><span class="line">}</span><br></pre></td></tr></table></figure>
</li>
</ul>
</li>
</ul>
</li>
<li><p>总结：使用React.FC并没有给我们带来明显的好处，而且这个类型可能会被官方弃用。所以我们还是建议使用常规的定义方式</p>
</li>
</ul>
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