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反应:警告:validateDOMNesting(...):空白文本节点不能作为子节点出现

[英]React: Warning: validateDOMNesting(…): Whitespace text nodes cannot appear as a child of <tr>

所以我弹出这个关于剩余空格的错误。我试图在堆栈中找到答案,但我的项目中实际上没有一个或任何表格元素,因为我使用的是 React 和 Material-UI。 我还收到另一个类似的错误,如下所示:

Warning: validateDOMNesting(...): <td> cannot appear as a child of <tfoot>.

我又在我的项目中找不到任何或。 我的错误选项卡已填满,每个错误都有一个相同的依赖项,即:

js/0.chunk.js:227830:31

似乎 React 抱怨 JSX 标签中大括号周围的空格。 在某处,其中一个 JSX 标记实际上是<td>标记,但由于它是第三方元素,您无法轻易看到它在幕后是什么标记。

因此,您将不得不更改以下所有代码:

<tag> {code} </tag>

<tag>{code}</tag>

解决此问题的最简单方法是在所有具有 JSX 文件扩展名的文件中进行全局替换:

  • > {>{
  • } </}</

但这很容易被破坏,因为它在某些地方可能是有效的代码。

我不确定在开发过程中是否有 ESlint 规则来捕捉这些问题。

如何修复警告:validateDOMNesting(...):<div> 不能作为孩子出现</div><div id="text_translate"><p>我将用户列表作为道具传递给 UserItem 组件,以迭代用户列表并将它们显示在表上。 列表显示正确,我的渲染返回中没有任何 div,但我仍然收到错误:index.js:1446 Warning: validateDOMNesting(...): cannot appear as a child of.</p><p> 尝试了网上找到的许多解决方案,但没有一个有效</p><p>用户管理代码:</p><pre> import React, { Component } from 'react'; import PropTypes from 'prop-types'; import { connect } from 'react-redux'; import Spinner from './common/Spinner'; import { getUsers } from '../actions/userActions'; import UserItem from './UserItem'; class UsersManagement extends Component { componentDidMount() { if (.this.props.auth.isAuthenticated) { this.props.history;push('/login'). } this.props;getUsers(), } render() { const { users. loading } = this.props;user; let usersList. if (users === null || loading) { usersList = <Spinner /> } else { if (users.length > 0) { usersList = users.map(user => ( <UserItem key={user._id} user={user} /> )) } else { usersList = <h2>No users</h2> } } return ( <div className="row"> <div className="col-12"> <h1 className="text-center mb-2">Users Management</h1> <button type="button" className="btn btn-success mb-4">New User</button> <table className="table"> <thead> <tr> <th scope="col">Options</th> <th scope="col">Username</th> <th scope="col">Email</th> <th scope="col">Phone Number</th> </tr> </thead> <tbody> {usersList} </tbody> </table> </div> </div> ) } } UsersManagement:propTypes = { getUsers. PropTypes.func,isRequired: auth. PropTypes.object,isRequired: user. PropTypes.object:isRequired } const mapStateToProps = state => ({ auth. state,auth: user. state,user }) export default connect(mapStateToProps; { getUsers })(UsersManagement);</pre><p> 用户项目代码:</p><pre> import React, { Component } from 'react'; import PropTypes from 'prop-types'; class UserItem extends Component { render() { const { user } = this.props; console.log(user); return ( <tr> <th scope="row"> <button type="button" className="btn btn-primary fa-xs mr-1"><i className="fas fa-pencil-alt"></i></button> <button type="button" className="btn btn-danger fa-xs"><i className="far fa-trash-alt"></i></button> </th> <td>{user.username}</td> <td>{user.email}</td> <td>{user.phone}</td> </tr> ) } } UserItem.propTypes = { user: PropTypes.object.isRequired } export default UserItem;</pre><p> 我希望修复警告信息</p></div>

[英]How to fix Warning: validateDOMNesting(...): <div> cannot appear as a child of <tbody>

Gatsby 警告:validateDOMNesting(...):不能作为子项出现<div></div><div id="text_translate"><p>我正在学习通过几个教程构建 Gatsby 站点。 我正在使用 Gatsby 2.13.50(CLI:2.7.14)。 通常,这些教程会教我们构建基本模板。 当我打开开发工具到控制台时,它加载得很好,除了这个警告:</p><pre> Warning: validateDOMNesting(...): <html> cannot appear as a child of <div>.</pre><p> 警告非常非常长。 我将在我的代码之后发布它的 rest。</p><p> 我的 layout.js 基本模板位于 /src/components/layout.js。 它看起来像这样:</p><pre> import React from "react" const Layout = (props) => { return ( <html lang="en"> <head> <Helmet> <meta charSet="utf-8" /> <title>Demo</title> </Helmet> </head> <body> {props.children} </body> </html> ) } export default Layout</pre><p> 它由 /src/pages/index.js 使用,如下所示:</p><pre> import React from 'react' import Layout from '../components/layout' const IndexPage = () => { return ( <Layout> <h1>Demo onle.</h1> <p>Hello. This totally works fine.</p> </Layout> ) } export default IndexPage</pre><p> 如前所述,它有效,除了开发工具控制台中的非常长的警告。</p><p> 我用谷歌搜索了这个,但还没有发现这是怎么发生的以及如何避免它。 我发现有一个<a href="https://www.gatsbyjs.org/docs/custom-html/" rel="nofollow noreferrer">html.js</a>但我不知道这是否是某种默认模板以及我是否应该覆盖它以用作基本模板。 我试过了,但性能很差,所以我认为我错了。</p><p> 当我删除<html>标签时,我得到: Parsing error: Adjacent JSX elements must be wrapped in an enclosing tag.</p><p> 如果我用<div>替换它 它说<body> cannot appear as a child of <div></p><p> 这是很长的警告:</p><pre> Warning: validateDOMNesting(...): <html> cannot appear as a child of <div>. in html (at layout.js:10) in Layout (at chat.js:6) in ChatPage (created by HotExportedChatPage) in AppContainer (created by HotExportedChatPage) in HotExportedChatPage (created by PageRenderer) in PageRenderer (at json-store.js:93) in JSONStore (at root.js:51) in RouteHandler (at root.js:73) in div (created by FocusHandlerImpl) in FocusHandlerImpl (created by Context.Consumer) in FocusHandler (created by RouterImpl) in RouterImpl (created by Context.Consumer) in Location (created by Context.Consumer) in Router (created by EnsureResources) in ScrollContext (at root.js:64) in RouteUpdates (at root.js:63) in EnsureResources (at root.js:61) in LocationHandler (at root.js:119) in LocationProvider (created by Context.Consumer) in Location (at root.js:118) in Root (at root.js:127) in _default (at app.js:65) __stack_frame_overlay_proxy_console__ @ index.js:2177 warningWithoutStack @ react-dom.development.js:507 validateDOMNesting @ react-dom.development.js:8625 createInstance @ react-dom.development.js:8737 completeWork @ react-dom.development.js:16901 completeUnitOfWork @ react-dom.development.js:19143 performUnitOfWork @ react-dom.development.js:19341 workLoop @ react-dom.development.js:19353 renderRoot @ react-dom.development.js:19436 performWorkOnRoot @ react-dom.development.js:20343 performWork @ react-dom.development.js:20255 performSyncWork @ react-dom.development.js:20229 requestWork @ react-dom.development.js:20098 scheduleWork @ react-dom.development.js:19912 enqueueSetState @ react-dom.development.js:11170./node_modules/react/cjs/react.development.js.Component.setState @ react.development.js:335 (anonymous) @ index.js:104 requestAnimationFrame (async) (anonymous) @ index.js:102 Promise.then (async) (anonymous) @ index.js:100 (anonymous) @ history.js:70 navigate @ history.js:69 (anonymous) @ navigation.js:103 Promise.then (async) navigate @ navigation.js:77 window.___navigate @ navigation.js:150 navigate @ index.js:213 onClick @ index.js:184 onClick @ index.js:464 callCallback @ react-dom.development.js:150 invokeGuardedCallbackDev @ react-dom.development.js:200 invokeGuardedCallback @ react-dom.development.js:257 invokeGuardedCallbackAndCatchFirstError @ react-dom.development.js:271 executeDispatch @ react-dom.development.js:562 executeDispatchesInOrder @ react-dom.development.js:584 executeDispatchesAndRelease @ react-dom.development.js:681 executeDispatchesAndReleaseTopLevel @ react-dom.development.js:689 forEachAccumulated @ react-dom.development.js:663 runEventsInBatch @ react-dom.development.js:817 runExtractedEventsInBatch @ react-dom.development.js:825 handleTopLevel @ react-dom.development.js:4827 batchedUpdates$1 @ react-dom.development.js:20440 batchedUpdates @ react-dom.development.js:2152 dispatchEvent @ react-dom.development.js:4906 (anonymous) @ react-dom.development.js:20491 unstable_runWithPriority @ scheduler.development.js:255 interactiveUpdates$1 @ react-dom.development.js:20490 interactiveUpdates @ react-dom.development.js:2171 dispatchInteractiveEvent @ react-dom.development.js:4883</pre><p> 我应该如何修复此警告?</p></div>

[英]Gatsby Warning: validateDOMNesting(...): <html> cannot appear as a child of <div>

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相关问题 反应:警告:validateDOMNesting(…):文本节点不能显示为以下子项<tbody> validateDOMNesting(...):文本节点不能作为子节点出现 validateDOMNesting(...):<tr> 不能作为孩子出现<div> React空白文本节点不能显示为的子级<tbody> 警告:validateDOMNesting(…):<div> 不能作为孩子出现<tbody> 反应<div>不能作为孩子出现<tr>警告 如何修复警告:validateDOMNesting(...):<div> 不能作为孩子出现</div><div id="text_translate"><p>我将用户列表作为道具传递给 UserItem 组件,以迭代用户列表并将它们显示在表上。 列表显示正确,我的渲染返回中没有任何 div,但我仍然收到错误:index.js:1446 Warning: validateDOMNesting(...): cannot appear as a child of.</p><p> 尝试了网上找到的许多解决方案,但没有一个有效</p><p>用户管理代码:</p><pre> import React, { Component } from 'react'; import PropTypes from 'prop-types'; import { connect } from 'react-redux'; import Spinner from './common/Spinner'; import { getUsers } from '../actions/userActions'; import UserItem from './UserItem'; class UsersManagement extends Component { componentDidMount() { if (.this.props.auth.isAuthenticated) { this.props.history;push('/login'). } this.props;getUsers(), } render() { const { users. loading } = this.props;user; let usersList. if (users === null || loading) { usersList = <Spinner /> } else { if (users.length > 0) { usersList = users.map(user => ( <UserItem key={user._id} user={user} /> )) } else { usersList = <h2>No users</h2> } } return ( <div className="row"> <div className="col-12"> <h1 className="text-center mb-2">Users Management</h1> <button type="button" className="btn btn-success mb-4">New User</button> <table className="table"> <thead> <tr> <th scope="col">Options</th> <th scope="col">Username</th> <th scope="col">Email</th> <th scope="col">Phone Number</th> </tr> </thead> <tbody> {usersList} </tbody> </table> </div> </div> ) } } UsersManagement:propTypes = { getUsers. PropTypes.func,isRequired: auth. PropTypes.object,isRequired: user. PropTypes.object:isRequired } const mapStateToProps = state => ({ auth. state,auth: user. state,user }) export default connect(mapStateToProps; { getUsers })(UsersManagement);</pre><p> 用户项目代码:</p><pre> import React, { Component } from 'react'; import PropTypes from 'prop-types'; class UserItem extends Component { render() { const { user } = this.props; console.log(user); return ( <tr> <th scope="row"> <button type="button" className="btn btn-primary fa-xs mr-1"><i className="fas fa-pencil-alt"></i></button> <button type="button" className="btn btn-danger fa-xs"><i className="far fa-trash-alt"></i></button> </th> <td>{user.username}</td> <td>{user.email}</td> <td>{user.phone}</td> </tr> ) } } UserItem.propTypes = { user: PropTypes.object.isRequired } export default UserItem;</pre><p> 我希望修复警告信息</p></div> Gatsby 警告:validateDOMNesting(...):不能作为子项出现<div></div><div id="text_translate"><p>我正在学习通过几个教程构建 Gatsby 站点。 我正在使用 Gatsby 2.13.50(CLI:2.7.14)。 通常,这些教程会教我们构建基本模板。 当我打开开发工具到控制台时,它加载得很好,除了这个警告:</p><pre> Warning: validateDOMNesting(...): <html> cannot appear as a child of <div>.</pre><p> 警告非常非常长。 我将在我的代码之后发布它的 rest。</p><p> 我的 layout.js 基本模板位于 /src/components/layout.js。 它看起来像这样:</p><pre> import React from "react" const Layout = (props) => { return ( <html lang="en"> <head> <Helmet> <meta charSet="utf-8" /> <title>Demo</title> </Helmet> </head> <body> {props.children} </body> </html> ) } export default Layout</pre><p> 它由 /src/pages/index.js 使用,如下所示:</p><pre> import React from 'react' import Layout from '../components/layout' const IndexPage = () => { return ( <Layout> <h1>Demo onle.</h1> <p>Hello. This totally works fine.</p> </Layout> ) } export default IndexPage</pre><p> 如前所述,它有效,除了开发工具控制台中的非常长的警告。</p><p> 我用谷歌搜索了这个,但还没有发现这是怎么发生的以及如何避免它。 我发现有一个<a href="https://www.gatsbyjs.org/docs/custom-html/" rel="nofollow noreferrer">html.js</a>但我不知道这是否是某种默认模板以及我是否应该覆盖它以用作基本模板。 我试过了,但性能很差,所以我认为我错了。</p><p> 当我删除<html>标签时,我得到: Parsing error: Adjacent JSX elements must be wrapped in an enclosing tag.</p><p> 如果我用<div>替换它 它说<body> cannot appear as a child of <div></p><p> 这是很长的警告:</p><pre> Warning: validateDOMNesting(...): <html> cannot appear as a child of <div>. in html (at layout.js:10) in Layout (at chat.js:6) in ChatPage (created by HotExportedChatPage) in AppContainer (created by HotExportedChatPage) in HotExportedChatPage (created by PageRenderer) in PageRenderer (at json-store.js:93) in JSONStore (at root.js:51) in RouteHandler (at root.js:73) in div (created by FocusHandlerImpl) in FocusHandlerImpl (created by Context.Consumer) in FocusHandler (created by RouterImpl) in RouterImpl (created by Context.Consumer) in Location (created by Context.Consumer) in Router (created by EnsureResources) in ScrollContext (at root.js:64) in RouteUpdates (at root.js:63) in EnsureResources (at root.js:61) in LocationHandler (at root.js:119) in LocationProvider (created by Context.Consumer) in Location (at root.js:118) in Root (at root.js:127) in _default (at app.js:65) __stack_frame_overlay_proxy_console__ @ index.js:2177 warningWithoutStack @ react-dom.development.js:507 validateDOMNesting @ react-dom.development.js:8625 createInstance @ react-dom.development.js:8737 completeWork @ react-dom.development.js:16901 completeUnitOfWork @ react-dom.development.js:19143 performUnitOfWork @ react-dom.development.js:19341 workLoop @ react-dom.development.js:19353 renderRoot @ react-dom.development.js:19436 performWorkOnRoot @ react-dom.development.js:20343 performWork @ react-dom.development.js:20255 performSyncWork @ react-dom.development.js:20229 requestWork @ react-dom.development.js:20098 scheduleWork @ react-dom.development.js:19912 enqueueSetState @ react-dom.development.js:11170./node_modules/react/cjs/react.development.js.Component.setState @ react.development.js:335 (anonymous) @ index.js:104 requestAnimationFrame (async) (anonymous) @ index.js:102 Promise.then (async) (anonymous) @ index.js:100 (anonymous) @ history.js:70 navigate @ history.js:69 (anonymous) @ navigation.js:103 Promise.then (async) navigate @ navigation.js:77 window.___navigate @ navigation.js:150 navigate @ index.js:213 onClick @ index.js:184 onClick @ index.js:464 callCallback @ react-dom.development.js:150 invokeGuardedCallbackDev @ react-dom.development.js:200 invokeGuardedCallback @ react-dom.development.js:257 invokeGuardedCallbackAndCatchFirstError @ react-dom.development.js:271 executeDispatch @ react-dom.development.js:562 executeDispatchesInOrder @ react-dom.development.js:584 executeDispatchesAndRelease @ react-dom.development.js:681 executeDispatchesAndReleaseTopLevel @ react-dom.development.js:689 forEachAccumulated @ react-dom.development.js:663 runEventsInBatch @ react-dom.development.js:817 runExtractedEventsInBatch @ react-dom.development.js:825 handleTopLevel @ react-dom.development.js:4827 batchedUpdates$1 @ react-dom.development.js:20440 batchedUpdates @ react-dom.development.js:2152 dispatchEvent @ react-dom.development.js:4906 (anonymous) @ react-dom.development.js:20491 unstable_runWithPriority @ scheduler.development.js:255 interactiveUpdates$1 @ react-dom.development.js:20490 interactiveUpdates @ react-dom.development.js:2171 dispatchInteractiveEvent @ react-dom.development.js:4883</pre><p> 我应该如何修复此警告?</p></div> 警告:validateDOMNesting(...):<a>不能作为后代出现</a> React --&gt; 警告:validateDOMNesting(...):<p> 不能作为后代出现<p>
 
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