SOURCE

// 要比较的时间
let checkTime = '2023-01-01 00:00:00'
let today = new Date(2022, 4) //当天
today.setMonth(today.getMonth()-3)//三个月前，时间戳
console.log('22', today.getFullYear() +'-' + (today.getMonth() + 1) + '-01 00:00:00' )
let newTodayTmp = new Date(today.getFullYear() +'-' + (today.getMonth() + 1) + '-01 00:00:00').getTime()
// 要比较的时间戳
let checkTmp = new Date(checkTime).getTime()
console.log('判断大小', newTodayTmp > checkTmp)