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javascript timestamp and date string conversion code of super simple

  • 2021-06-29 10:11:29
  • OfStack

javascript Timestamp and Date String Conversion Code (Super Simple) 


<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<script type="text/javascript">
//  Get the current timestamp ( with s In units )
var timestamp = Date.parse(new Date());
timestamp = timestamp / 1000;
// The current timestamp is: 1403149534
console.log(" The current timestamp is: " + timestamp);

//  Get a timestamp for a time format 
var stringTime = "2014-07-10 10:21:12";
var timestamp2 = Date.parse(new Date(stringTime));
timestamp2 = timestamp2 / 1000;
//2014-07-10 10:21:12 The timestamp is: 1404958872 
console.log(stringTime + " The timestamp is: " + timestamp2);

//  Convert the current time to a time format string 
var timestamp3 = 1403058804;
var newDate = new Date();
newDate.setTime(timestamp3 * 1000);
// Wed Jun 18 2014 
console.log(newDate.toDateString());
// Wed, 18 Jun 2014 02:33:24 GMT 
console.log(newDate.toGMTString());
// 2014-06-18T02:33:24.000Z
console.log(newDate.toISOString());
// 2014-06-18T02:33:24.000Z 
console.log(newDate.toJSON());
// 2014 year 6 month 18 day  
console.log(newDate.toLocaleDateString());
// 2014 year 6 month 18 day   morning 10:33:24 
console.log(newDate.toLocaleString());
//  morning 10:33:24 
console.log(newDate.toLocaleTimeString());
// Wed Jun 18 2014 10:33:24 GMT+0800 ( China Standard Time )
console.log(newDate.toString());
// 10:33:24 GMT+0800 ( China Standard Time ) 
console.log(newDate.toTimeString());
// Wed, 18 Jun 2014 02:33:24 GMT
console.log(newDate.toUTCString());

Date.prototype.format = function(format) {
    var date = {
       "M+": this.getMonth() + 1,
       "d+": this.getDate(),
       "h+": this.getHours(),
       "m+": this.getMinutes(),
       "s+": this.getSeconds(),
       "q+": Math.floor((this.getMonth() + 3) / 3),
       "S+": this.getMilliseconds()
    };
    if (/(y+)/i.test(format)) {
       format = format.replace(RegExp.$1, (this.getFullYear() + '').substr(4 - RegExp.$1.length));
    }
    for (var k in date) {
       if (new RegExp("(" + k + ")").test(format)) {
           format = format.replace(RegExp.$1, RegExp.$1.length == 1
              ? date[k] : ("00" + date[k]).substr(("" + date[k]).length));
       }
    }
    return format;
}
console.log(newDate.format('yyyy-MM-dd h:m:s'));

</script>
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