拼凑任意时间格式的方法

//拼凑任意时间格式
function filterTimeDay(value) {
    // 过滤时间戳，返回值yyyy-mm-dd ss
    if (!value) {
        return value
    }
    var date = new Date(value)
    // const date = new Date(value * 1000)
    const y = 1900 + date.getYear()
    const m = `0${date.getMonth() + 1}`
    const d = `0${date.getDate()}`
    const hh = date.getHours().toString().padStart(2, "0");
    const mm = `${date.getMinutes().toString().padStart(2, "0")}`
    const ss = date.getSeconds() < 10 ? `0${date.getSeconds()}` : date.getSeconds()
    const val = `${y}${d.substring(d.length - 2, d.length)}${m.substring(m.length - 2, m.length)}  ${hh}:${mm}:${ss}`
    return val
}

function getDateString(date) {
    var date = new Date(date)
    var year = date.getFullYear().toString().padStart(4, "0");
    var month = (date.getMonth() + 1).toString().padStart(2, "0");
    var day = date.getDate().toString().padStart(2, "0");
    var hour = date.getHours().toString().padStart(2, "0");
    var minute = date.getMinutes().toString().padStart(2, "0");
    var second = date.getSeconds().toString().padStart(2, "0");
    return `${year}${day}${month} ${hour}:${minute}:${second}`;
}