如何在react js中获取月份的起始日期和当前日期？

const currentDate = new Date();

currentDate.setDate(1);

const startOfMonth = currentDate.toISOString().split("T")[0];

import React from 'react';

class DateComponent extends React.Component {
  componentDidMount() {
    const currentDate = new Date();
    const startOfMonth = new Date(currentDate.getFullYear(), currentDate.getMonth(), 1).toISOString().split("T")[0];
    console.log("Current Date: ", currentDate.toISOString().split("T")[0]);
    console.log("Start of Month: ", startOfMonth);
  }

  render() {
    return null;
  }
}

export default DateComponent;