JS timestamp conversion, get the current time year month day, timestamp to date time (custom format) and other methods

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1. Timestamp conversion (10 digits)/(13 digits)

// The timestamp is 13 bits
formatDate: function (time) {// Time stamp to date
    let date = new Date(time);
    let y = date.getFullYear();
    let MM = date.getMonth() + 1;
    MM = MM < 10 ? ('0' + MM) : MM;
    let d = date.getDate();
    d = d < 10 ? ('0' + d) : d;
    let h = date.getHours();
    h = h < 10 ? ('0' + h) : h;
    let m = date.getMinutes();
    m = m < 10 ? ('0' + m) : m;
    let s = date.getSeconds();
    s = s < 10 ? ('0' + s) : s;
    return y + The '-' + MM + The '-' + d + ' ' + h + ':' + m + ':' + s;
    // return y + '-' + MM + '-' + d;
},
// The timestamp is 10 bits
formatDate: function (time) {// Time stamp to date
    let date = new Date(parseInt(time) * 1000);
    let y = date.getFullYear();
    let MM = date.getMonth() + 1;
    MM = MM < 10 ? ('0' + MM) : MM;
    let d = date.getDate();
    d = d < 10 ? ('0' + d) : d;
    let h = date.getHours();
    h = h < 10 ? ('0' + h) : h;
    let m = date.getMinutes();
    m = m < 10 ? ('0' + m) : m;
    let s = date.getSeconds();
    s = s < 10 ? ('0' + s) : s;
    return y + The '-' + MM + The '-' + d + ' ' + h + ':' + m + ':' + s;
    // return y + '-' + MM + '-' + d;
},
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2. Timestamp to date time (customizable return format)

Here USES the JavaScript function library jutils formatDate function, reference address jutils attach: < script SRC = “https://cdn.jsdelivr.net/npm/jutils-src” > < / script >

function formatDate(data,formatstr){
    var arrweek=["Day"."一"."二"."Three"."Four"."Five"."Six"];
    var str=formatstr.replace(/yyyy|YYYY/,date.getFullYear()).replace(/yy|YY/,
    $addZero(date.getFullYear() % 100.2)).replace(/mm|MM/,$addZero(date.getMonth() + 1.2)).replace(/m|M/g,date.getMonth() + 1).replace(/dd|DD/,$addZero(date.getDate(),2)).replace(/d|D/g,
    date.getDate()).replace(/hh|HH/,$addZero(date.getHours(),2)).replace(/h|H/g,
    date.getHours()).replace(/ii|II/,$addZero(date.getMinutes(),2)).replace(/i|I/g,
    date.getMinutes()).replace(/ss|SS/,$addZero(date.getSeconds(),2)).replace(/s|S/g,
    date.getSeconds()).replace(/w|g/,$addZero(date.getDay(),2)).replace(/W/g,arrweek[date.getDay()]);
    return str;
}
function $addZero(v,size){
  for(var i=0,len=size-(v+"").length; i<len; i++){ v="0"+v;
  }
  return v+""} Example// year, month, day, hour, minute, second
var date = jutils.formatDate(new Date(1634002035*1000),"YYYY-MM-DD HH:ii:ss");
/ / the 2021-10-12 09:27:15

// year, month, day, week
var date = jutils.formatDate(new Date(1634002035*1000),"YYYY - MM - DD weeks W");
/ / the 2021-10-12 on Tuesday

// time, minute, second
var date = jutils.formatDate(new Date(1634002035*1000),"HH:ii:ss");
/ / 09:27:15
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3. Method of obtaining the current timestamp

var times = Date.parse(new Date());// Not recommended, because milliseconds are converted to 000, which is not accurate!

var times = (new Date()).valueOf();// Get the timestamp of the current millisecond.

var times = new Date().getTime();// Returns a value in milliseconds;
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4. Time to timestamp millisecond method

(new Date(this.zzsj)).getTime()   //getTime() returns a value in milliseconds
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5. Time conversion to timestamp

DateThe parse ()// Go to the timestamp
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6. Get the current year, month and day

getDatetime(){
    // Get the current date
    let date_ = new Date(a);let seperator1 = "-";
    let year = date_.getFullYear();
    let month = date_.getMonth() + 1;
    let strDate = date_.getDate();
}
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7.Js gets the current date, time and other operations

var Date = new Date(a);Date.getYear();        // Get the current year (2 bits)
Date.getFullYear();    // Get the full year (4 bits,1970-????)
Date.getMonth();       // Get the current month (0-11,0 for January)
Date.getDate();        // Get the current day (1-31)
Date.getDay();         // Get the current week X(0-6,0 for Sunday)
Date.getTime();        // Get the current time (milliseconds from 1970.1.1)
Date.getHours();       // Get the current hour (0-23)
Date.getMinutes();     // Get the current minute (0-59)
Date.getSeconds();     // Get the current number of seconds (0-59)
Date.getMilliseconds();    // Get the current number of milliseconds (0-999)
Date.toLocaleDateString();     // Get the current date
var time=Date.toLocaleTimeString();     // Get the current time
Date.toLocaleString( );        // Get the date and time
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