由两个按钮组成,它们处理每个onClick函数,但当我运行代码"myfunction is not defined“时,出现错误。
1.react 调用方法的写法 (1)方式一 1 onClick={this.getFetchData.bind(this,item.id)} (2)方式二 1 2 3 4 5 6 7 getFetchData(e){ this.setState({ value: e.target.value }) } onClick={(event)=>this.getFetchData(event)} (3)方式三 1 2 3 4 5 6 7 8 handleCancel = () => ...
import React, {useState, useEffect, useCallback} from 'react'; const canvas_style = { border:"1px solid #000000", position: "absolute", top: 0, left: 0, } function Coordinate(props) { const [HorizontalLines, setHorizontalLines] = useState({"start": [], "end": []}); //store sta...
1.react 调用方法的写法 (1)方式一 onClick={this.getFetchData.bind(this,item.id)} 1. (2)方式二 getFetchData(e){this.setState({value:e.target.value})}onClick={(event)=>this.getFetchData(event)} 1. 2. 3. 4. 5. 6. 7. (3)方式三 handleCancel=()=>{console.log('Clicked cancel...
react调用function的写法及解决reactonClick方法自动执行 react调⽤function的写法及解决reactonClick⽅法⾃动执⾏1.react 调⽤⽅法的写法 (1)⽅式⼀ onClick={this.getFetchData.bind(this,item.id)} (2)⽅式⼆ getFetchData(e){ this.setState({ value: e.target.value })} onClick=...
a. 传递. <Component list={ arrData }><Component> b. 接收. function Component( props ){...
When we pass a value that is not a function to the onClick attribute of an element, we get the error Expected onClick listener to be a function . To fix the error, make sure you only pass a function to the onClick attribute of an element. const App =
render: function() { return ( ); } }); 这是我在 CodePen 上的小项目的链接。http://codepen.io/anfperez/pen/RorKge 为了让您放心,onClick事件在 React 中与 div 一起工作,因此请仔细检查您的代码语法。 这些是对的: doThis()}> 这些是错误的: doThis}> (并且不要忘记关闭你的标...
import React, { useState, useEffect, useRef } from "react"; import axios from 'axios'; // auto dealer, 1 card/s turned on or off function CardTable2() { const [src, setSrc] = useState(''); const deckId = useRef(); const remaining = useRef(52); ...
functionActionLink() {functionhandleClick(e) { e.preventDefault();console.log('The link was clicked.'); }return(Click me); } 类似页面 带有示例的类似页面 react按钮组件onclick react中的bind函数 事件监听器react onclick组件react onclick传递