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.stopImmediat

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 'react';import './App.css';class App extends Component {  handleClickTestBox = (e) => {    console.warn('handleClickTestBox: ', e);  }  handleClickTestBox2 = (e) => {    console.warn('handleClickTestBox2: ', e);  }  handleClickTestBox3 = (e) => {    e.stopPropagation();    console.warn('handleClickTestBox3: ', e);  }  render() {    return (      <div        className="test-box"        onClick={this.handleClickTestBox}      >        <div          onClick={this.handleClickTestBox2}        >          <div            onClick={this.handleClickTestBox3}          >          </div>        </div>      </div>    );  }}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 'react';import './App.css';class App extends Component {  componentDidMount() {    document.addEventListener('click', this.handleDocumentClick, false);  }  handleDocumentClick = (e) => {    console.log('handleDocumentClick: ', e);  }  handleClickTestBox = (e) => {    console.warn('handleClickTestBox: ', e);  }  handleClickTestBox2 = (e) => {    console.warn('handleClickTestBox2: ', 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('handleClickTestBox3: ', e);  }  render() {    return (      <div        className="test-box"        onClick={this.handleClickTestBox}      >        <div          onClick={this.handleClickTestBox2}        >          <div            onClick={this.handleClickTestBox3}          >          </div>        </div>      </div>    );  }}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 'react';import './App.css';class App extends Component {  componentDidMount() {    document.addEventListener('click', this.handleDocumentClick, false);    document.body.addEventListener('click', this.handleBodyClick, false);  }  handleDocumentClick = (e) => {    console.log('handleDocumentClick: ', e);  }  handleBodyClick = (e) => {    if (e.target && e.target === document.querySelector('#inner')) {      return;    }    console.log('handleBodyClick: ', e);  }  handleClickTestBox = (e) => {    console.warn('handleClickTestBox: ', e);  }  handleClickTestBox2 = (e) => {    console.warn('handleClickTestBox2: ', 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('handleClickTestBox3: ', e);  }  render() {    return (      <div        className="test-box"        onClick={this.handleClickTestBox}      >        <div          onClick={this.handleClickTestBox2}        >          <div            id="inner"            onClick={this.handleClickTestBox3}          >          </div>        </div>      </div>    );  }}export default App;

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