javascript - JavaScriptでMM/dd/yyyy HH:mm:ss形式で日付をフォーマットするには?

Question

重複の可能性:
JavaScript で日付をフォーマットする

JavaScript Date オブジェクトで可能な他の形式は知っていますが、日付をフォーマットする方法についてはわかりませんでしたMM/dd/yyyy HH:mm:ss。

このような問題に遭遇した場合はお知らせください。

Answer 1

Try something like this

var d = new Date,
    dformat = [d.getMonth()+1,
               d.getDate(),
               d.getFullYear()].join('/')+' '+
              [d.getHours(),
               d.getMinutes(),
               d.getSeconds()].join(':');

If you want leading zero's for values < 10, use this number extension

Number.prototype.padLeft = function(base,chr){
    var  len = (String(base || 10).length - String(this).length)+1;
    return len > 0? new Array(len).join(chr || '0')+this : this;
}
// usage
//=> 3..padLeft() => '03'
//=> 3..padLeft(100,'-') => '--3' 

Applied to the previous code:

var d = new Date,
    dformat = [(d.getMonth()+1).padLeft(),
               d.getDate().padLeft(),
               d.getFullYear()].join('/') +' ' +
              [d.getHours().padLeft(),
               d.getMinutes().padLeft(),
               d.getSeconds().padLeft()].join(':');
//=> dformat => '05/17/2012 10:52:21'

See this code in jsfiddle

[edit 2019] Using ES20xx, you can use a template literal and the new padStart string extension.

var dt = new Date();

console.log(`${
    (dt.getMonth()+1).toString().padStart(2, '0')}/${
    dt.getDate().toString().padStart(2, '0')}/${
    dt.getFullYear().toString().padStart(4, '0')} ${
    dt.getHours().toString().padStart(2, '0')}:${
    dt.getMinutes().toString().padStart(2, '0')}:${
    dt.getSeconds().toString().padStart(2, '0')}`
);

See also

Answer 2

部分を抽出し、文字列関数を使用してそれらを結合することで、いつでも日付をフォーマットできます。

var date = new Date();
var dateStr =
  ("00" + (date.getMonth() + 1)).slice(-2) + "/" +
  ("00" + date.getDate()).slice(-2) + "/" +
  date.getFullYear() + " " +
  ("00" + date.getHours()).slice(-2) + ":" +
  ("00" + date.getMinutes()).slice(-2) + ":" +
  ("00" + date.getSeconds()).slice(-2);
console.log(dateStr);

Answer 3

var d = new Date();

var curr_date = d.getDate();

var curr_month = d.getMonth();

var curr_year = d.getFullYear();

document.write(curr_date + "-" + curr_month + "-" + curr_year);

using this you can format date.

you can change the appearance in the way you want then

for more info you can visit here

Answer 4

var d = 新しい日付 ();

// 関数を呼び出す
formatDate(d,4);


関数 formatDate(dateObj,format)
{
    var monthNames = [ "1月", "2月", "3月", "4月", "5月", "6月", "7月", "8月", "9月", "10月", "11月", "12月" ];
    var curr_date = dateObj.getDate();
    var curr_month = dateObj.getMonth();
    curr_month = curr_month + 1;
    var curr_year = dateObj.getFullYear();
    var curr_min = dateObj.getMinutes();
    var curr_hr= dateObj.getHours();
    var curr_sc= dateObj.getSeconds();
    if(curr_month.toString().length == 1)
    curr_month = '0' + curr_month;      
    if(curr_date.toString().length == 1)
    curr_date = '0' + curr_date;
    if(curr_hr.toString().length == 1)
    curr_hr = '0' + curr_hr;
    if(curr_min.toString().length == 1)
    curr_min = '0' + curr_min;

    if(format ==1)//dd-mm-yyyy
    {
        return curr_date + "-"+curr_month+ "-"+curr_year;       
    }
    else if(format ==2)//yyyy-mm-dd
    {
        return curr_year + "-"+curr_month+ "-"+curr_date;       
    }
    else if(format ==3)//dd/mm/yyyy
    {
        return curr_date + "/"+curr_month+ "/"+curr_year;       
    }
    else if(format ==4)// MM/dd/yyyy HH:mm:ss
    {
        return curr_month+"/"+curr_date +"/"+curr_year+ ""+curr_hr+":"+curr_min+":"+curr_sc;       
    }
}