本质上,我得到了一个不变的违规错误:
React.createElement: type is invalid -- expected a string (for built-in components) or a class/function (for composite components) but got: undefined. You likely forgot to export your component from the file it's defined in, or you might have mixed up default and named imports
我看不到子组件中的文本。呈现大小为0x0且为空的子元素。
这是反应路由器造成的吗?
这是我的密码:
App.js:
import React, { Component } from 'react';
import { BrowserRouter as Router, Route, Switch } from "react-router-dom";
import home from './pages/home/home';
import repoDetails from "./pages/repoDetails/repoDetails
我想在我的Typescript应用程序中使用切换-开关-反应-本机组件。我试着这样安装它:
yarn add toggle-switch-react-native --save
@types/toggle-switch-react-native
但是,我仍然得到一个错误:
Could not find a declaration file for module 'toggle-switch-react-native'. '/Users/grannyandsmith/insta/app/node_modules/toggle-switch-react-native/Tog
主要的问题是这个映像是从文件资源管理器中选择的,我使用的是react路由器。Add.js --这是您选择图像的地方
import { Link } from "react-router-dom";
import About from "./About";
import './styles/modal.css'
import firebase from "firebase";
require("firebase/firestore")
require("firebase/storage")
ex
我对两个不同的事件重用了相同的reducer逻辑。这个想法是根据你点击的文本来切换一个类。每个事件都会触发,但我的对象不会切换。有什么想法吗?
应用程序:
import React from "react"
import { bindActionCreators } from 'redux'
import { connect } from "react-redux"
import * as toggleactionCreators from '../actions/toggleActions';
function mapStat
我的任务是在/上打开Main products,在/misc上打开具有相同布局(页眉和页脚)的Misc products,在/about上打开没有布局的About
import React from 'react';
import {render} from 'react-dom';
import {BrowserRouter as Router, Route, Switch, Link, Redirect} from 'react-router-dom'
const About = () => "About";
con