我想问一下当我做onclick事件时为什么我的状态没有改变.我刚才搜索过我需要在构造函数中绑定onclick函数,但状态仍未更新.这是我的代码:
import React from 'react';
import Grid from 'react-bootstrap/lib/Grid';
import Row from 'react-bootstrap/lib/Row';
import Col from 'react-bootstrap/lib/Col';
import BoardAddModal from 'components/board/BoardAddModal.jsx';
import style from 'styles/boarditem.css';
class BoardAdd extends React.Component {
constructor(props){
super(props);
this.state = {
boardAddModalShow: false
}
this.openAddBoardModal = this.openAddBoardModal.bind(this);
}
openAddBoardModal(){
this.setState({ boardAddModalShow: true });
// After setting a new state it still return a false value
console.log(this.state.boardAddModalShow);
}
render() {
return (
<Col lg={3}>
<a href="javascript:;" className={style.boardItemAdd} onClick={this.openAddBoardModal}>
<div className={[style.boardItemContainer,style.boardItemGray].join(' ')}>
Create New Board
</div>
</a>
</Col> …Run Code Online (Sandbox Code Playgroud) 当然有很多关于的 问题和 答案,我已经尝试查看它们,但还没有找到与我的问题非常相似而有用的问题(或解决方案)。仍然很可能有一个解决这个问题的方法,如果是这样,请指出,并对重复的内容表示歉意。setState
以下是功能性 React 组件的相关代码:
const [ state, setState ] = useState({})
useEffect(data => {
const getFromServer = axios.get('http://localhost:3030/poolInfo')
.then(res => {
console.log("RES.DATA LOOKS LIKE THIS:, ", res.data);
setState(res.data); // I also tried setState({...res.data})
console.log("IN AXIOS, STATE IS NOW: ", state);
})
.catch (err => console.error("YO YOU GOT AN ERROR IN AXIOS ", err))
},[])
Run Code Online (Sandbox Code Playgroud)
下面是上面两个的结果console.log:
RES.DATA LOOKS LIKE THIS:, Object { balance: 1000000000000000000, feeAndSplit: Array [500, 20] }
IN AXIOS, STATE IS NOW: …