我正在尝试做一些非常简单的事情:每次单击按钮时,此组件中的"当前"值:https://github.com/conorhastings/react-thermometer会增加.
问题是,当我构建时,控制台抛出以下错误:模块构建失败:SyntaxError:意外的令牌,预期((29:11)
在这一行:
function mapStateToProps(state){
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这是我的容器的整个代码:
import React, {Component} from 'react';
import Thermometer from "react-thermometer";
import {bindActionCreators} from 'redux';
import {connect} from 'react-redux';
import {incrementValue} from '../actions/index';
class Thermo extends Component{
getValue(){
return this.props.val;
}
render(){
return(
<div>
<Thermometer
min={0}
max={90}
width={10}
height={90}
backgroundColor={'gray'}
fillColor={'pink'}
current={this.getValue()}
/>
<Button onClick={() => this.props.incrementValue(val)}>+</Button>
</div>
)
}
function mapStateToProps(state){
return{
val: state.val
};
}
function matchDispatchToProps(dispatch){
return bindActionCreators({incrementValue: incrementValue}, dispatch);
}
}
export default connect(mapStateToProps, matchDispatchToProps)(Thermo);
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为了以防万一,这是我的webpack配置:
var path …Run Code Online (Sandbox Code Playgroud)