如何解决警告:React无法识别DOM元素上的X属性 [英] How to solve Warning: React does not recognize the X prop on a DOM element

问题描述

我正在使用一种叫做 react-firebase-js 的东西来处理Firebase身份验证，但我的理解是反应和提供者-消费者的想法是有限的.

I'm using a thing called react-firebase-js to handle firebase auth, but my understanding of react and of the provider-consumer idea is limited.

我从顶层开始构建了一个非常大的JSX东西，并且在没有警告的情况下可以正常工作.但是，当我尝试将其分解为各个部分时，我得到了标题和其他一些警告.

I started with a built a very big JSX thing all at the top level, and that works without warnings. But when I try to break it into components, I got the warning shown in the title and a few others.

这在没有警告的情况下...

This works without warning...

// in App.js component

  render() {
    return (
        <header className="App-header">
            <img src={logo} className="App-logo" alt="logo" />
            <FirebaseAuthConsumer>
                {({ isSignedIn, user, providerId }) => {
                    if (isSignedIn) {
                        return (
                           // ui for signed in user
                        );  
                    } else {
                        if (this.state.confirmationResult) {
                            return (
                                // ui to get a phone number sign in
                            );
                        } else {                  
                            return (
                                // ui to verify sms code that was sent
                            );
                        }
                    }
                }}
            </FirebaseAuthConsumer>
        </header>
    );
  }

但是我认为，这种更好的设计会产生错误/警告...

But this, better design, I thought, generates errors/warnings...

// in App.js component
render() {
    return (
      <MuiThemeProvider>
      <FirebaseAuthProvider {...config} firebase={firebase}>
        <div className="App">
          <IfFirebaseAuthed>
            <p>You're authed buddy</p>
            <RaisedButton label="Sign Out" onClick={this.signOutClick} />
          </IfFirebaseAuthed>
          <IfFirebaseUnAuthed>
              <Authenticater />  // <-- this is the new component
        </IfFirebaseUnAuthed>
        </div>
      </FirebaseAuthProvider>
      </MuiThemeProvider>
    );
  }

// in my brand new Authenticator component...

  render() {
    return (
        <header className="App-header">
            <img src={logo} className="App-logo" alt="logo" />
            <FirebaseAuthConsumer>
                {({ isSignedIn, user, providerId }) => {
                    if (isSignedIn) {
                        return (
                        <div>
                            <pre style={{ height: 300, overflow: "auto" }}>
                            {JSON.stringify({ isSignedIn, user, providerId }, null, 2)}
                            </pre>
                        </div>
                        );  
                    } else {
                        if (this.state.confirmationResult) {
                            return (
                                // ui to get a phone number sign in
                            );
                        } else {                  
                            return (
                                // ui to verify an sms code that was sent
                            );
                        }
                    }
                }}
            </FirebaseAuthConsumer>
        </header>
    );
  }

错误/警告看起来像这样...

The errors/warnings look like this...

[错误]警告:React无法识别 DOM元素.如果您有意让它以DOM的形式出现在DOM中 自定义属性，则将其拼写为小写issignedin.如果你 意外地从父组件传递了它，将其从DOM中删除 元素.

[Error] Warning: React does not recognize the isSignedIn prop on a DOM element. If you intentionally want it to appear in the DOM as a custom attribute, spell it as lowercase issignedin instead. If you accidentally passed it from a parent component, remove it from the DOM element.

[错误]警告:React无法识别 DOM元素.如果您有意让它以DOM的形式出现在DOM中 自定义属性，则将其拼写为小写providerid.如果你 意外地从父组件传递了它，将其从DOM中删除 元素.

[Error] Warning: React does not recognize the providerId prop on a DOM element. If you intentionally want it to appear in the DOM as a custom attribute, spell it as lowercase providerid instead. If you accidentally passed it from a parent component, remove it from the DOM element.

[错误]错误:无法加载外部reCAPTCHA依赖项！ (匿名函数)(0.chunk.js:1216)[错误]错误:您遇到的错误 提供的不包含堆栈跟踪.

[Error] Error: Unable to load external reCAPTCHA dependencies! (anonymous function) (0.chunk.js:1216) [Error] Error: The error you provided does not contain a stack trace.

我是否误解了如何使用提供者-消费者，或者react-firebase代码是否存在错误，或者我做错了其他事情吗?谢谢.

Am I misunderstanding how to use provider-consumers, or is there an error in the react-firebase code, or am I doing some other thing wrong? Thanks.

推荐答案

大概这行必须是罪魁祸首:

Presumably, this line must be the culprit:

<FirebaseAuthProvider {...config} firebase={firebase}>

您的config对象当前包含字段isSignedIn和providerId，并且您必须将这些字段发送给子组件，最后发送给DOM元素.尝试将这些字段从对象中删除，然后再向下发送:

Your config object currently holds fields isSignedIn and providerId, and you must be sending those down to children components, and ultimately to a DOM element. Try removing those fields from the object before you send them down:

const { providerId, isSignedIn, ...authProviderConfig } = config

这样，您的对象authProviderConfig将不包含providerId或isSignedIn属性.

That way, your object authProviderConfig will not hold the providerId or isSignedIn attributes.

更好的是，您可以显式重建配置对象以避免任何进一步的混乱:

Even better, you can rebuild the configuration object explicitly to avoid any further confusion:

const authProviderConfig = { /* The fields from config FirebaseAuthProvider actually needs */ }

您还应该检查FirebaseAuthProvider组件，以了解其如何使用这些道具，并避免将其传播到DOM元素中.

You should also check your FirebaseAuthProvider component to see how it's using those props, and avoid spreading them down to DOM elements.

相关文档: https://reactjs.org/warnings/unknown-prop.html

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