我创建了一个反应应用程序。
当我尝试在标题应用程序中导入组件时,浏览器中变为空白。下面是我的代码
主要成分
import React, { Component } from 'react';
import PropTypes from 'prop-types';
import {
Nav,
Navbar,
Collapse,
DropdownMenu,
DropdownItem,
NavbarToggler,
DropdownToggle,
UncontrolledDropdown,
} from 'reactstrap';
import { Link, withRouter } from 'react-router-dom';
import Config from '../../../constants/config';
//import { SidebarNavItems } from '../Sidebar';
import Search from '../search';
import logoImages from '../../../images/logo.png';
require('./styles.scss');
class Header extends Component {
static propTypes = {
member: PropTypes.shape({
firstName: PropTypes.string,
email: PropTypes.string,
}),
logout: PropTypes.func.isRequired,
history: PropTypes.shape({
push: PropTypes.func.isRequired,
}).isRequired,
};
static defaultProps = {
member: {},
};
constructor(props) {
super(props);
this.toggleDropDown = this.toggleDropDown.bind(this);
this.state = { isOpen: false };
}
onLogout = () => {
const { logout, history } = this.props;
logout().then(() => history.push('/login'));
};
toggleDropDown = () => {
const { isOpen } = this.state;
this.setState({ isOpen: !isOpen });
};
render() {
const { member } = this.props;
const { isOpen } = this.state;
const loggedIn = !!(member && member.email);
return (
<header className="header_warp">
<Navbar className="header_inner">
<div className="logomain">
<a to="/" className="" style={{ color: '#FFF' }}>
<img src={logoImages} className="logo" title={Config.appName} alt={Config.appName} />
<h1>Capture The Moment <span>A Picture Worth a Thousand Words</span></h1>
</a>
</div>
<Search/>
</Navbar>
</header>
);
}
}
export default withRouter(Header);
子组件
import React, { Component } from 'react';
import PropTypes from 'prop-types';
import {
Nav,
Navbar,
Collapse,
DropdownMenu,
DropdownItem,
NavbarToggler,
DropdownToggle,
UncontrolledDropdown,
} from 'reactstrap';
import { Link, withRouter } from 'react-router-dom';
import Config from '../../../constants/config';
import { SidebarNavItems } from '../Sidebar';
import logoImages from '../../../images/logo.png';
require('./styles.scss');
class Search extends Component {
static propTypes = {
member: PropTypes.shape({
firstName: PropTypes.string,
email: PropTypes.string,
}),
logout: PropTypes.func.isRequired,
history: PropTypes.shape({
push: PropTypes.func.isRequired,
}).isRequired,
};
static defaultProps = {
member: {},
};
constructor(props) {
super(props);
this.toggleDropDown = this.toggleDropDown.bind(this);
this.state = { isOpen: false };
}
onLogout = () => {
const { logout, history } = this.props;
logout().then(() => history.push('/login'));
};
toggleDropDown = () => {
const { isOpen } = this.state;
this.setState({ isOpen: !isOpen });
};
render() {
const { member } = this.props;
const { isOpen } = this.state;
const loggedIn = !!(member && member.email);
return (
<div className="header_warp">
fgfdgfd tgrtgr
</div>
);
}
}
export default withRouter(Search);
我在导入子组件后更新并附加了新的错误消息。我正在使用一个状态工具包来创建这个应用程序。所以当我说的时候,一些组件已经在那里了。主要是我在渲染方法中编辑的。请在下面找到错误消息。谢谢...