我有一个助手函数,它被我的React中的两个组件所使用。这个助手函数分发一组Redux操作。如何将连接到此助手函数,以便它能够分派操作?
我的助手看起来是这样的:
export default const helper = () => {
//dispatch some actions
// I would like to do something similar to this: this.props.dispatch()
//do something else(produce some JSX)
}
我的组件看起来如下:
import helper from &
我在react构建上遇到了运行时错误,否则它会与yarn start完美地工作在一起。我在chrome控制台上连续读到了两个"Uncaught :M is not defined“。应用程序的主要依赖项是deck.gl、mapbox和material-ui。Node版本v14.15.5和npm版本6.14.11。我怀疑这与捆绑过程有关。让我知道我还能提供什么来解决这个问题。
可供参考的项目依赖列表:
"@babel/plugin-syntax-jsx": "^7.12.13",
"@babel/plugin-transform-r
我正在尝试学习原生的react。之前,我下载了一个样例项目,并提供了TextInput组件的以下代码 import React, { memo } from 'react';
import { View, StyleSheet, Text } from 'react-native';
import { TextInput as Input } from 'react-native-paper';
import { theme } from '../core/theme';
type Props = React.Componen
我需要使反应日选择组件与redux形式兼容。我知道这不是绝对正确的,但对我目前的项目来说,这是一种束缚。但我很难做到。我使用了react日期选择器,使其与这种方式兼容:
import React from 'react';
import { PropTypes } from 'prop-types';
import DatePicker from 'react-datepicker';
import moment from 'moment';
import { injectIntl, intlShape } from 'r
我正在尝试用酶测试一个组件,我得到了以下错误:
Warning: Failed context type: The context `history` is marked as required in `Link`, but its value is `undefined`.
in Link (at UserTable.js:30)
in button (created by Button)
in Button (at UserTable.js:29)
in td (at UserTable.js:28)
in t
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import Active from './Components/Active';
import Completed from './Component
搜索组件:
import React from "react";
import SearchResults from "../SearchResults";
import PropTypes from "prop-types";
class Search extends React.Component {
state = {
value: ""
};
handleChange = event => {
let value = event.target.value;
this.setSt
当我试图在一个react应用程序上实现服务器端呈现时,我的行为很奇怪。
...
Error: Element type is invalid: expected a string (for built-in components) or a
class/function (for composite components) but got: object.
You likely forgot to export your component from the file it's defined in,
or you might have mixed up default and na
import React from 'react';
import ReactDOM from 'react-dom';
import {Provider} from 'react-redux';
import {createStore, applyMiddleware} from 'redux';
import thunk from 'redux-thunk';
import Reducer from './Reducer/';
import {HashRouter as Router, Ro
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Invariant Violation: ReactShallowRenderer render(): Shallow rendering works only with custom components, but the provided element type was 'undefined'.
这是我的密码:
dashboardComponent.js
import '../stylesheets/dashboardCom