React Question

App.jsx

import React, { Component } from 'react';
import ToggleBox from '../components/ToggleBox';
class App extends Component {
  constructor(props) {
    super(props);
    this.state = {
      total : 60,
      count: 0
    };
  }
  getToggles() {
    let toggles = [];
    for (let i = 0; i < this.state.count; i++) {
      toggles.push(<ToggleBox checked={false} key={i} />);
    }
    return toggles;
  }

  render() {
    let toggles = this.getToggles();
    return (
        <div className="App">
          {{this.state.count}} - {{this.state.total}}
          <div className="container-toggle-box">
              {toggles}
          </div>
      </div>
    );
  }
}

export default App;

ToggleBox.jsx

import React, {Component} from 'react';
class ToggleBox extends Component {
  constructor(props) {
    super(props);
    this.state = {
      active = this.props.checked
    };
    this.handleClick= this.handleClick.bind(this);
  }
 
  handleClick() {
    this.setState({active: (this.state.active) ? false : true}
  }
  
  render() {
    let mark = (this.state.active) ? 'x' : 'o'
      return (
        <span>
          {mark}
        </span>
      );
  }
}

export default ToggleBox;