react如何阻止冒泡失败

react阻止冒泡失败的方法：1、在没有涉及到原生事件注册只有react事件时，用【e.stopPropagation()】阻止冒泡；2、需要用到【e.nativeEvent.stopImmediatePropagation()】方法。

react阻止冒泡失败的方法：

1、在没有涉及到原生事件注册只有react事件时，用e.stopPropagation()阻止冒泡，代码如下：

import React, { Component } from &＃39;react&＃39;;
import &＃39;./App.css&＃39;;
class App extends Component {
  handleClickTestBox = (e) => {
    console.warn(&＃39;handleClickTestBox: &＃39;, e);
  }
  handleClickTestBox2 = (e) => {
    console.warn(&＃39;handleClickTestBox2: &＃39;, e);
  }
  handleClickTestBox3 = (e) => {
    e.stopPropagation();
    console.warn(&＃39;handleClickTestBox3: &＃39;, e);
  }
  render() {
    return (
      

        

          

          
        
      
    );
  }
}
export default App;

2、当用document.addEventListener注册了原生的事件后，用e.stopPropagation()是不能阻止与document之间的冒泡，这时候需要用到e.nativeEvent.stopImmediatePropagation()方法，代码如下：

import React, { Component } from &＃39;react&＃39;;
import &＃39;./App.css&＃39;;
class App extends Component {
  componentDidMount() {
    document.addEventListener(&＃39;click&＃39;, this.handleDocumentClick, false);
  }
  handleDocumentClick = (e) => {
    console.log(&＃39;handleDocumentClick: &＃39;, e);
  }
  handleClickTestBox = (e) => {
    console.warn(&＃39;handleClickTestBox: &＃39;, e);
  }
  handleClickTestBox2 = (e) => {
    console.warn(&＃39;handleClickTestBox2: &＃39;, e);
  }
  handleClickTestBox3 = (e) => {
    // 阻止合成事件的冒泡
    e.stopPropagation();
    // 阻止与原生事件的冒泡
    e.nativeEvent.stopImmediatePropagation();
    console.warn(&＃39;handleClickTestBox3: &＃39;, e);
  }
  render() {
    return (
      

        

          

          
        
      
    );
  }
}
export default App;

3、阻止合成事件与非合成事件（除了document）之间的冒泡，以上两种方式都不适用，需要用到e.target判断， 代码如下：

import React, { Component } from &＃39;react&＃39;;
import &＃39;./App.css&＃39;;
class App extends Component {
  componentDidMount() {
    document.addEventListener(&＃39;click&＃39;, this.handleDocumentClick, false);
    document.body.addEventListener(&＃39;click&＃39;, this.handleBodyClick, false);
  }
  handleDocumentClick = (e) => {
    console.log(&＃39;handleDocumentClick: &＃39;, e);
  }
  handleBodyClick = (e) => {
    if (e.target && e.target === document.querySelector(&＃39;#inner&＃39;)) {
      return;
    }
    console.log(&＃39;handleBodyClick: &＃39;, e);
  }
  handleClickTestBox = (e) => {
    console.warn(&＃39;handleClickTestBox: &＃39;, e);
  }
  handleClickTestBox2 = (e) => {
    console.warn(&＃39;handleClickTestBox2: &＃39;, e);
  }
  handleClickTestBox3 = (e) => {
    // 阻止合成事件的冒泡
    e.stopPropagation();
    // 阻止与原生事件的冒泡
    e.nativeEvent.stopImmediatePropagation();
    console.warn(&＃39;handleClickTestBox3: &＃39;, e);
  }
  render() {
    return (
      

        

          

          
        
      
    );
  }
}
export default App;

相关免费学习推荐：Javascript（视频）

以上就是react如何阻止冒泡失败的详细内容，更多请关注 第一PHP社区 其它相关文章！