奇怪的React编译器行为

时间:2018-12-23 00:55:35

标签: reactjs webpack reactstrap

我在ReactJS上做项目。将reactstrap的模块放入bootstrap4的模块中。

我有reactstrap个标签:

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;

已更新!

因此有效。 我想将标签的内容传输到单独的组件中,例如:

<TabContent activeTab={this.state.activeTab}>
     <SignInTab/>
     <SignUpTab/>
     <TermsTab/>
</TabContent>

在编译过程中发生了错误:

./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">&times;</span>

为什么?

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 个答案:

答案 0 :(得分:9)

错误发生在./node_modules/reactstrap/src/Alert.js中意味着从reactstrap/src/...而不是reactstrap导入组件(后者指向reactstrap/dist/...)。

reactstrap/src导入的问题是它包含需要转译的代码。不应无缘无故地导入它,因为通常将项目配置为不从node_modules来转译模块,这将导致开销和潜在的问题。在create-react-app生成的应用程序中,只有在不修改Webpack配置的情况下才能更改此设置。

IDE自动导入通常会添加错误的导入,例如reactstrap/src/...

如果有

import Alert from 'reactstrap/src/Alert.js';

导入,应将其更改为

import { Alert } from 'reactstrap';