Home  >  Article  >  Web Front-end  >  How to convert timestamp to normal date format in javascript

How to convert timestamp to normal date format in javascript

coldplay.xixi
coldplay.xixiOriginal
2021-04-07 16:18:463519browse

Javascript method to convert timestamp to ordinary date format: 1. Use the Date toLocaleString method; 2. Use the encapsulated time formatter, the code is [function date(format, timestamp)].

How to convert timestamp to normal date format in javascript

The operating environment of this tutorial: Windows 7 system, JavaScript version 1.8.5, DELL G3 computer.

Javascript method to convert timestamp to ordinary date format:

Date toLocaleString method

function getLocalTime(nS) {  
 return new Date(parseInt(nS) * 1000).toLocaleString().replace(/:\d{1,2}$/,' ');  
}

parseInt ()The function can parse a string and return an integer.

The unit of time operation in js is milliseconds.

  • The toLocaleString() method can convert the Date object into a string according to the local time and return the result.

  • Thereplace() method is used to replace some characters with other characters in a string, or replace a substring that matches a regular expression.

replace(/:\d{1,2}$/,' ') Verify that the replacement starts with: a string ending with one or two digits, which is seconds; replace with The empty

is displayed as follows:

How to convert timestamp to normal date format in javascript

The encapsulated time formatter

/** 
 * 和PHP一样的时间戳格式化函数 
 * @param {string} format 格式 
 * @param {int} timestamp 要格式化的时间 默认为当前时间 
 * @return {string}   格式化的时间字符串 
 */
function date(format, timestamp){ 
 var a, jsdate=((timestamp) ? new Date(timestamp*1000) : new Date()); 
 var pad = function(n, c){ 
  if((n = n + "").length < c){ 
   return new Array(++c - n.length).join("0") + n; 
  } else { 
   return n; 
  } 
 }; 
 var txt_weekdays = ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"]; 
 var txt_ordin = {1:"st", 2:"nd", 3:"rd", 21:"st", 22:"nd", 23:"rd", 31:"st"}; 
 var txt_months = ["", "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"]; 
 var f = { 
  // Day 
  d: function(){return pad(f.j(), 2)}, 
  D: function(){return f.l().substr(0,3)}, 
  j: function(){return jsdate.getDate()}, 
  l: function(){return txt_weekdays[f.w()]}, 
  N: function(){return f.w() + 1}, 
  S: function(){return txt_ordin[f.j()] ? txt_ordin[f.j()] : &#39;th&#39;}, 
  w: function(){return jsdate.getDay()}, 
  z: function(){return (jsdate - new Date(jsdate.getFullYear() + "/1/1")) / 864e5 >> 0}, 
  
  // Week 
  W: function(){ 
   var a = f.z(), b = 364 + f.L() - a; 
   var nd2, nd = (new Date(jsdate.getFullYear() + "/1/1").getDay() || 7) - 1; 
   if(b <= 2 && ((jsdate.getDay() || 7) - 1) <= 2 - b){ 
    return 1; 
   } else{ 
    if(a <= 2 && nd >= 4 && a >= (6 - nd)){ 
     nd2 = new Date(jsdate.getFullYear() - 1 + "/12/31"); 
     return date("W", Math.round(nd2.getTime()/1000)); 
    } else{ 
     return (1 + (nd <= 3 ? ((a + nd) / 7) : (a - (7 - nd)) / 7) >> 0); 
    } 
   } 
  }, 
  
  // Month 
  F: function(){return txt_months[f.n()]}, 
  m: function(){return pad(f.n(), 2)}, 
  M: function(){return f.F().substr(0,3)}, 
  n: function(){return jsdate.getMonth() + 1}, 
  t: function(){ 
   var n; 
   if( (n = jsdate.getMonth() + 1) == 2 ){ 
    return 28 + f.L(); 
   } else{ 
    if( n & 1 && n < 8 || !(n & 1) && n > 7 ){ 
     return 31; 
    } else{ 
     return 30; 
    } 
   } 
  }, 
  
  // Year 
  L: function(){var y = f.Y();return (!(y & 3) && (y % 1e2 || !(y % 4e2))) ? 1 : 0}, 
  //o not supported yet 
  Y: function(){return jsdate.getFullYear()}, 
  y: function(){return (jsdate.getFullYear() + "").slice(2)}, 
  
  // Time 
  a: function(){return jsdate.getHours() > 11 ? "pm" : "am"}, 
  A: function(){return f.a().toUpperCase()}, 
  B: function(){ 
   // peter paul koch: 
   var off = (jsdate.getTimezoneOffset() + 60)*60; 
   var theSeconds = (jsdate.getHours() * 3600) + (jsdate.getMinutes() * 60) + jsdate.getSeconds() + off; 
   var beat = Math.floor(theSeconds/86.4); 
   if (beat > 1000) beat -= 1000; 
   if (beat < 0) beat += 1000; 
   if ((String(beat)).length == 1) beat = "00"+beat; 
   if ((String(beat)).length == 2) beat = "0"+beat; 
   return beat; 
  }, 
  g: function(){return jsdate.getHours() % 12 || 12}, 
  G: function(){return jsdate.getHours()}, 
  h: function(){return pad(f.g(), 2)}, 
  H: function(){return pad(jsdate.getHours(), 2)}, 
  i: function(){return pad(jsdate.getMinutes(), 2)}, 
  s: function(){return pad(jsdate.getSeconds(), 2)}, 
  //u not supported yet 
  
  // Timezone 
  //e not supported yet 
  //I not supported yet 
  O: function(){ 
   var t = pad(Math.abs(jsdate.getTimezoneOffset()/60*100), 4); 
   if (jsdate.getTimezoneOffset() > 0) t = "-" + t; else t = "+" + t; 
   return t; 
  }, 
  P: function(){var O = f.O();return (O.substr(0, 3) + ":" + O.substr(3, 2))}, 
  //T not supported yet 
  //Z not supported yet 
  
  // Full Date/Time 
  c: function(){return f.Y() + "-" + f.m() + "-" + f.d() + "T" + f.h() + ":" + f.i() + ":" + f.s() + f.P()}, 
  //r not supported yet 
  U: function(){return Math.round(jsdate.getTime()/1000)} 
 }; 
  
 return format.replace(/[\]?([a-zA-Z])/g, function(t, s){ 
  if( t!=s ){ 
   // escaped 
   ret = s; 
  } else if( f[s] ){ 
   // a date function exists 
   ret = f[s](); 
  } else{ 
   // nothing special 
   ret = s; 
  } 
  return ret; 
 }); 
}

calling method can easily Convert timestamp to date format, such as:

date(&#39;Y-m-d&#39;,&#39;1350052653&#39;);//很方便的将时间戳转换成了2012-10-11 
date(&#39;Y-m-d H:i:s&#39;,&#39;1350052653&#39;);//得到的结果是2012-10-12 22:37:33

If it is ejs,

<%=d_getInfo.createTime==""?&#39;--&#39;:new Date((1508989391) * 1000).toLocaleString().replace(new RegExp(&#39;/&#39;,&#39;g&#39;),"-")%>

will display the effect of

2017-10-26 11:43

Related free learning recommendations: javascript (Video)

The above is the detailed content of How to convert timestamp to normal date format in javascript. For more information, please follow other related articles on the PHP Chinese website!

Statement:
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn