年月日封装

function getYearMonthDay(){

    var nowDays = new Date();

    var year = nowDays.getFullYear();    //年

    var month = nowDays.getMonth()+1  //月

    var day = nowDays.getDate() < 10 ? '0' + nowDays.getDate() : nowDays.getDate();

    //判断月份是否为个位

    if(month <10){

    month = '0' + month;

    const startTime = year + '-' +  month + '-01' ;

    const endTime = year + month + day

  return {

    startTime:startTime;

    endTime:endTime;

} 

}

}

方法中进行调用：const currentTime = getYearMonthDay（）；