Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

组件事件传参只能在类作用域下的确切引用(this.handleXX || this.props.handleXX),或使用 bind #1491

Closed
liudonghua123 opened this issue Dec 13, 2018 · 5 comments
Labels
question Further information is requested

Comments

@liudonghua123
Copy link

问题描述

参考 https://stackoverflow.com/questions/29810914/react-js-onclick-cant-pass-value-to-method 在Component中我写了一个高阶函数

  onClickTab = param => e => {
    if (this.state.currentTab !== param) {
      this.setState({
        currentTab: param
      })
    }
  }

然后在想绑定onClick事件

        <View className='swiper-tab'>
          <View
            className={`swiper-tab-item ${currentTab == 0 ? 'active' : ''}`}
            onClick={this.onClickTab(1)}
          >
            所有课程
          </View>
          <View
            className={`swiper-tab-item ${currentTab == 0 ? 'active' : ''}`}
            onClick={this.onClickTab(2)}
          >
            课程分类
          </View>
        </View>

复现步骤
如上面所说的代码

期望行为
可以正常工作

报错信息

修改  页面文件  src/pages/training
编译  页面文件  src/pages/training
错误  页面编译  页面D:\code\other\taroApp\src\pages\training编译失败!
Error: 组件事件传参只能在类作用域下的确切引用(this.handleXX || this.props.handleXX),或使用 bind。
  -----
  failed to locate source
    at Object.codeFrameError (C:\Users\Liu.D.H\AppData\Local\Yarn\Data\global\node_modules\@tarojs\transformer-wx\lib\src\utils.js:230:12)
    at JSXExpressionContainer (C:\Users\Liu.D.H\AppData\Local\Yarn\Data\global\node_modules\@tarojs\transformer-wx\lib\src\class.js:344:39)
    at NodePath._call (C:\Users\Liu.D.H\AppData\Local\Yarn\Data\global\node_modules\babel-traverse\lib\path\context.js:76:18)
    at NodePath.call (C:\Users\Liu.D.H\AppData\Local\Yarn\Data\global\node_modules\babel-traverse\lib\path\context.js:48:17)
    at NodePath.visit (C:\Users\Liu.D.H\AppData\Local\Yarn\Data\global\node_modules\babel-traverse\lib\path\context.js:105:12)
    at TraversalContext.visitQueue (C:\Users\Liu.D.H\AppData\Local\Yarn\Data\global\node_modules\babel-traverse\lib\context.js:150:16)
    at TraversalContext.visitSingle (C:\Users\Liu.D.H\AppData\Local\Yarn\Data\global\node_modules\babel-traverse\lib\context.js:108:19)
    at TraversalContext.visit (C:\Users\Liu.D.H\AppData\Local\Yarn\Data\global\node_modules\babel-traverse\lib\context.js:192:19)
    at Function.traverse.node (C:\Users\Liu.D.H\AppData\Local\Yarn\Data\global\node_modules\babel-traverse\lib\index.js:114:17)
    at NodePath.visit (C:\Users\Liu.D.H\AppData\Local\Yarn\Data\global\node_modules\babel-traverse\lib\path\context.js:115:19)

[这里请贴上你的完整报错截图或文字]

系统信息

  • 操作系统: Windows 10
  • Taro 版本 v1.2.0-beta.14
  • Node.js 版本 v11.2.0
  • 报错平台 weapp
@taro-bot
Copy link

taro-bot bot commented Dec 13, 2018

欢迎提交 Issue~

如果你提交的是 bug 报告,请务必遵循 Issue 模板的规范,尽量用简洁的语言描述你的问题,最好能提供一个稳定简单的复现。🙏🙏🙏

如果你的信息提供过于模糊或不足,或者已经其他 issue 已经存在相关内容,你的 issue 有可能会被关闭。

Good luck and happy coding~

@liudonghua123
Copy link
Author

后来我使用这种方式解决

  onClickTab = param => e => {
    if (this.state.currentTab !== param) {
      this.setState({
        currentTab: param
      })
    }
  }
        <View className='swiper-tab'>
          <View
            className={`swiper-tab-item ${currentTab == 0 ? 'active' : ''}`}
            onClick={this.onClickTab.bind(this, 0)}
          >
            所有课程
          </View>
          <View
            className={`swiper-tab-item ${currentTab == 1 ? 'active' : ''}`}
            onClick={this.onClickTab.bind(this, 1)}
          >
            课程分类
          </View>
        </View>

@yuche
Copy link
Contributor

yuche commented Dec 13, 2018

写 curry 或者写匿名函数都不行,编译已经告诉你很清楚了,用 bind

@yuche yuche added question Further information is requested answered labels Dec 13, 2018
@taro-bot
Copy link

taro-bot bot commented Dec 13, 2018

Hello~

您的问题楼上已经有了确切的回答,如果没有更多的问题这个 issue 将在 15 天后被自动关闭。

如果您在这 15 天中更新更多信息自动关闭的流程会自动取消,如有其他问题也可以发起新的 Issue。

Good luck and happy coding~

@liudonghua123
Copy link
Author

@Taro-bot @yuche 谢谢

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
question Further information is requested
Projects
None yet
Development

No branches or pull requests

2 participants