将破折号的（plotly）反应功能组件转换为 class 组件

Question

我刚刚了解到破折号的 Create your own components . I'm also new in react. I generally prefer to write component in react in class. I created a react file where I dumped the source code of dash html component 。 Div组件写在函数中。我想将这个 Div 组件转换成 class。这是我在做什么 -

import React from 'react';
import PropTypes from 'prop-types';
import {omit} from 'ramda';

class Div extends Component{

   render(){
     const props = this.props;
     const dataAttributes = {};
     if(props.loading_state && props.loading_state.is_loading) {
          dataAttributes['data-dash-is-loading'] = true;
     }

     return (
        <div id = "scroll-div" className="scroll-bar"
            onClick={() => props.setProps({
                n_clicks: props.n_clicks + 1,
                n_clicks_timestamp: Date.now()
            })}
           {...omit(['n_clicks', 'n_clicks_timestamp', 'loading_state', 'setProps'], props)}
        {...dataAttributes}
        >
           {props.children}

        </div>
    );
  }
};
Div.defaultProps = {
  n_clicks: 0,
  n_clicks_timestamp: -1,
};

Div.propTypes = {
     .......
};

export default Div;

但是我对 class 进行的这种转换不起作用。我究竟做错了什么？ Div 组件到 class 的正确转换是什么？

谢谢:)

Answer 1

您应该导入：-

import React,{Component} from 'react';

或者您可以将 class 声明修改为：-

class Div extends React.Component{}

将破折号的（plotly）反应功能组件转换为 class 组件

Converting dash's(plotly) react functional component into class component

python

reactjs

plotly-dash