随笔分类 - react
create-react-app
摘要:1.constructor():构造函数 执行时间:组件被加载前最先调用,并且仅调用一次 作用:定义状态机变量 注意:第一个语句必须是super(props),正确定义状态机代码如下 constructor(props) { super(props); this.state = { content:
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摘要:import React, { Component } from 'react';import logo from './logo.svg';import './App.css';import 'antd/dist/antd.css';// import DatePicker from 'antd/
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摘要:1.安装npm install axios 2.在package.json下添加
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摘要:import React, {Component} from 'react'; export default class Parent extends Component { render() { return( <div> <Child onRef={this.onRef} /> <button
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摘要:import React, { Component } from 'react';import { Button } from 'antd';import cookie from 'react-cookies'class Cookie extends Component { constructor(
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摘要:import React, { Component } from 'react';import { BrowserRouter as Router, Route, Link, Switch, Redirect} from 'react-router-dom';import About from '.
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摘要:1.npm run eject 2.npm install mobx mobx-react --save 3.npm install --save-dev babel-plugin-transform-decorators-legacy 4.npm install babel-core babel-
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