奇怪的反應編譯器行為
[英]Strange React Compiler Behavior
問題描述
我在ReactJS上做項目。 將reactstrap模塊放入bootstrap4元素。
我有reactstrap標簽：
import React, {Component} from 'react';
import {
Button,
Col,
Container,
Form,
Input,
InputGroup, InputGroupAddon, InputGroupText,
Label,
Nav,
NavItem,
NavLink,
Row,
TabContent,
TabPane
} from "reactstrap";
import {Link} from "react-router-dom";
import classNames from 'classnames';
import Logo from "../../components/common/Logo";
import '../../style/page/auth/style.css';
import '../../style/page/auth/media.css';
import '../../style/page/auth/custom.css';
class LoginPage extends Component {
constructor(props) {
super(props);
this.state = {
activeTab: 'signInTab'
};
this.toggle = this.toggle.bind(this);
this.openTermsTab = this.openTermsTab.bind(this);
}
componentDidMount() {
document.title = "Авторизация";
}
toggle(tab) {
if (this.state.activeTab !== tab) {
this.setState({
activeTab: tab
});
}
}
openTermsTab(e) {
e.preventDefault();
this.toggle('termsTab');
}
render() {
return (
<main className="align-middle">
<Container>
<Row className="h-100 justify-content-center">
<Col xs={"12"} sm={"12"} md={"8"} lg={"6"} xl={"6"}>
<div className="entry-box-wrapper">
<div className="entry-box modal-content">
<div className="modal-body">
<Nav pills justified>
<NavItem>
<NavLink
className={classNames({ active: this.state.activeTab === 'signInTab' })}
onClick={() => { this.toggle('signInTab'); }}>
Авторизация
</NavLink>
</NavItem>
<NavItem>
<NavLink
className={classNames({ active: this.state.activeTab === 'signUpTab' })}
onClick={() => {this.toggle('signUpTab')}}>
Регистрация
</NavLink>
</NavItem>
<NavItem>
<NavLink
className={classNames({ active: this.state.activeTab === 'termsTab' })}
onClick={this.openTermsTab}>
Правила сервиса
</NavLink>
</NavItem>
</Nav>
<Logo className={"d-block mx-auto mt-4"} />
<TabContent activeTab={this.state.activeTab}>
<TabPane tabId={"signInTab"}>
<hr/>
<Form id="signInForm" >
<div className="form-group input-group">
<InputGroup>
<InputGroupAddon addonType="prepend">
<InputGroupText>
<i className="fas fa-envelope"/>
</InputGroupText>
</InputGroupAddon>
<Input type="email" name="email" placeholder="Email" />
</InputGroup>
</div>
<div className="form-group input-group">
<InputGroup>
<InputGroupAddon addonType="prepend">
<InputGroupText>
<i className="fas fa-unlock-alt"/>
</InputGroupText>
</InputGroupAddon>
<Input type="password" name="password" placeholder="Пароль" />
</InputGroup>
</div>
<Row>
<Col widths={["6"]}>
<div className="custom-control custom-checkbox">
<Input
type={"checkbox"}
name={"rememberMe"}
id={"singInTabRememberMe"}
className={"custom-control-input"}/>
<Label
for={"singInTabRememberMe"}
className={"custom-control-label"}>
запомнить меня
</Label>
</div>
</Col>
<Col widths={["6"]} className="text-center pl-0 pr-0">
<Link to="/admin/forgot" className="brand-link">
Не помню пароль
</Link>
</Col>
</Row>
<Button color="" className={"float-right brand-nav-btn left-filling"}>
<i><img src={process.env.PUBLIC_URL + '/img/login2.png'} alt=""/></i>
<span>
Вход
</span>
</Button>
</Form>
</TabPane>
<TabPane tabId={"signUpTab"}>
<hr/>
<Form>
<div className="form-group input-group">
<InputGroup>
<InputGroupAddon addonType="prepend">
<InputGroupText>
<i className="fas fa-envelope"/>
</InputGroupText>
</InputGroupAddon>
<Input type="email" placeholder="Email" />
</InputGroup>
</div>
<div className="form-group input-group">
<InputGroup>
<InputGroupAddon addonType="prepend">
<InputGroupText>
<i className="fas fa-unlock-alt"/>
</InputGroupText>
</InputGroupAddon>
<Input type="password" placeholder="Пароль" />
</InputGroup>
</div>
<div className="form-group input-group">
<InputGroup>
<InputGroupAddon addonType="prepend">
<InputGroupText>
<i className="fas fa-unlock-alt"/>
</InputGroupText>
</InputGroupAddon>
<Input type="password" placeholder="Повторите пароль" />
</InputGroup>
</div>
<div className="custom-control custom-checkbox ">
<Input
type={"checkbox"}
name={"example1"}
id={"chBxTermsArgee"}
className={"custom-control-input"}/>
<Label
for={"chBxTermsArgee"}
className={"custom-control-label"}>
согласен с
<a href={"#"} className="brand-link" id="serviceTermsLink"
onClick={this.openTermsTab}>
правилами сервиса
</a>
</Label>
</div>
<Button color="" className={"float-right brand-nav-btn left-filling"}>
<i><img src={process.env.PUBLIC_URL + '/img/login2.png'} alt=""/></i>
<span>
Отправить
</span>
</Button>
</Form>
</TabPane>
<TabPane id="termsTab" tabId={"termsTab"}>
<hr/>
<div className="service-terms">
<h3>Правила предоставления услуги</h3>
<p>
Lorem ipsum dolor sit amet consectetur adipisicing elit.
Ipsa, cumque
necessitatibus impedit delectus ratione harum nisi nemo
minus eaque,
exercitationem consequuntur. Repellat tempore molestias
dicta. Recusandae
quam rem ducimus temporibus!
Doloribus quibusdam ullam atque possimus sequi libero
inventore natus amet
facilis, minima dolore molestias accusantium nam omnis,
delectus totam fuga
quae nemo asperiores laboriosam veritatis! Ipsam aperiam
ipsa nulla vitae?
Temporibus nulla rem aspernatur eum quidem minima
voluptatum corporis libero
explicabo. Impedit distinctio deleniti labore
exercitationem quae
repudiandae consequatur? Ullam eveniet quo
exercitationem! Sint ab, nihil
placeat ea omnis libero!
Lorem ipsum, dolor sit amet consectetur adipisicing
elit. Cum, voluptatum
perspiciatis molestias reiciendis blanditiis pariatur in
sunt velit? Labore
assumenda repellendus sint molestiae debitis esse itaque
totam distinctio
perferendis reiciendis?
</p>
</div>
</TabPane>
</TabContent>
</div>
</div>
</div>
</Col>
</Row>
</Container>
</main>
);
}
}
export default LoginPage;
更新！
所以它有效。 我想將標簽的內容轉移到單獨的組件中，如下所示：
<TabContent activeTab={this.state.activeTab}>
<SignInTab/>
<SignUpTab/>
<TermsTab/>
</TabContent>
這里編譯時發生錯誤：
./node_modules/reactstrap/src/Alert.js
SyntaxError: E:\IDEA\application\node_modules\reactstrap\src\Alert.js: Unexpected token (72:4)
70 |
71 | return (
> 72 | <Fade {...attributes} {...alertTransition} tag={Tag} className={classes} in={isOpen} role="alert" innerRef={innerRef}>
| ^
73 | {toggle ?
74 | <button type="button" className={closeClasses} aria-label={closeAriaLabel} onClick={toggle}>
75 | <span aria-hidden="true">×</span>
為什么？
package.json
{
"name": "front-end-react-v1",
"version": "0.1.0",
"private": true,
"dependencies": {
"ajv": "^6.6.2",
"ajv-keywords": "^3.2.0",
"classnames": "^2.2.3",
"react": "^16.7.0",
"react-dom": "^16.7.0",
"react-native": "^0.57.8",
"react-router": "^4.3.1",
"react-router-dom": "^4.3.1",
"react-router-native": "^4.3.0",
"react-scripts": "^2.1.1",
"reactstrap": "^6.5.0"
},
"scripts": {
"start": "react-scripts start",
"build": "react-scripts build",
"test": "react-scripts test",
"eject": "react-scripts eject"
},
"eslintConfig": {
"extends": "react-app"
},
"browserslist": [
">0.2%",
"not dead",
"not ie <= 11",
"not op_mini all"
],
"devDependencies": {
"babel-core": "^6.26.3",
"babel-loader": "^8.0.4",
"babel-preset-env": "^1.7.0",
"babel-preset-react": "^6.24.1"
}
}
1 個解決方案
解決方案1
12 已采納 2018-12-26 18:49:02
在./node_modules/reactstrap/src/Alert.js發生錯誤意味着組件是從reactstrap/src/...而不是reactstrap （后者指向reactstrap/dist/... ）。
從reactstrap/src導入的問題是它包含需要轉換的代碼。 不應該在沒有充分理由的情況下導入它，因為項目通常配置為不從node_modules轉換模塊，這會導致開銷和潛在問題。 在create-react-app ，如果不修改Webpack配置，則無法更改。
IDE自動導入通常會添加像reactstrap/src/...這樣的錯誤導入。
如果有的話
import Alert from 'reactstrap/src/Alert.js';
導入，應該改為
import { Alert } from 'reactstrap';
React JS 中的奇怪行為
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