React -我们可以计算一个组件上的onMouseEnter和onMouseLeave之间的时间吗？

import React, { Component } from 'react';

class MyComponent extends Component {
  constructor(props) {
    super(props);
    this.state = {
      enterTime: null,
      leaveTime: null,
      duration: null,
    };
  }

  handleMouseEnter() {
    this.setState({ enterTime: new Date() });
  }

  handleMouseLeave() {
    this.setState((prevState) => ({
      leaveTime: new Date(),
      duration: prevState.enterTime
        ? new Date() - prevState.enterTime
        : null,
    }));
  }

  render() {
    const { enterTime, leaveTime, duration } = this.state;
    return (
      <div
        onMouseEnter={() => this.handleMouseEnter()}
        onMouseLeave={() => this.handleMouseLeave()}
      >
        <p>Enter time: {enterTime}</p>
        <p>Leave time: {leaveTime}</p>
        <p>Duration: {duration}</p>
      </div>
    );
  }
}

export default MyComponent;