example.js

import React, {PropTypes} from 'react';
import {connect} from 'react-redux';

import './calendar.scss';

export class CalendarComponent extends React.Component {

  render() {
    const {
      condition,
      list
    } = this.props;

    if (condition) {
      return <///>
    }

    return (
      <div className="calendar-component">
        {list.map(()=><///>)}
      </div>
    );
  }

function mapStateToProps(state) {
  return {
    list: state.calendar,
    condition: state.calendar.length > 100
  };
}

CalendarComponent.propTypes = {
 
};

CalendarComponent.defaultProps = {
  
};

export default connect(mapStateToProps, null)(CalendarComponent);