Question

您好我正在开发Angularjs / JavaScript中的Web应用程序。我有一个日历选择器，我从前端捕获日期。在数据库中保存所选日期时，我想以Hijri格式保存。我跟着Converting Gregorian date to Hijri date，当我在writeIslamicDate中传递1时它工作正常。例如：

var today=new Date();
writeIslamicDate(today);

如果我今天通过日期，那么它会给我undefined, NaN undefined NaN AH所以我可以知道在将输入传递给writeIslamicDate之前是否需要转换为任何格式？有人可以帮助我吗？任何帮助，将不胜感激。谢谢。

Answer 1

您只需稍微调整您链接的功能即可。要允许输入日期作为可选调整，您需要允许传递日期，因此请进行以下更改：

double shuffle_signals(float array[VOL])

{
    srand((unsigned int) time(NULL));

    if(VOL>1)
    {
        int i,j,t;
        for(i=0; i<VOL;i++)
        {
            j=i+rand()/((float)RAND_MAX/(VOL-i)+1.);
            t=array[j];
            array[j]=array[i];
            array[i]=t;

            if(array[i]==1){
                signal2[i]=MIN;
                signal1[i]=MAX;
            }
            else if(array[i]==0){
                signal2[i]=MIN;
                signal1[i]=MIN;
            }
            else if (array[i]==2){
                signal1[i]=MAX;
                signal2[i]=MAX;
            }
            tot_sig= signal1[i]+signal2[i];
        }
        // printf("tot_sign: %lf\n", tot_sig);
    }
    return tot_sig;
}

}

到

function writeIslamicDate(adjustment) {
  ...
  var iDate = kuwaiticalendar(adjustment);

和

function writeIslamicDate(date, adjustment) {
  ...
  var iDate = kuwaiticalendar(date, adjustment);

为：

function kuwaiticalendar(adjust) {
  var today = new Date();

用日期与否来称呼它。下面是完整修改后的代码（清理了一下）。您还可以尝试toLocaleString选项，这些选项不仅可以转换为伊斯兰日历，还可以使用主机的默认语言。

＆＃13;

function kuwaiticalendar(date, adjust) {
  var today = date || new Date();

＆＃13;

使用 toLocaleString ，您可以执行以下操作。

＆＃13;

// Returns mathematic mod, not javascript mod
// e.g. gmod(-3, 2) returns 1, whereas -3%2 returns -1
function gmod(n, m){
  return ((n % m) + m) % m;
}

/* @param {Date}   date   - optional, default is today
** @param {number} adjust - optiona, days to adjust date by
*/
function kuwaiticalendar(date, adjust) {
  var today = date? new Date(+date) : new Date();
  if (adjust) {
    today.setDate(today.getDate() + +adjust);
  }

  var day = today.getDate();
  var month = today.getMonth();
  var year = today.getFullYear();
  var m = month + 1;
  var y = year;

  if (m < 3) {
      y -= 1;
      m += 12;
  }

  var a = Math.floor(y / 100);
  var b = 2 - a + Math.floor(a / 4);

  if (y < 1583) b = 0;
  if (y == 1582) {
    if (m > 10)  b = -10;
    if (m == 10) {
      b = 0;
      if (day > 4) b = -10;
    }
  }

  var jd = Math.floor(365.25*(y+4716))+Math.floor(30.6001*(m+1))+day+b-1524;

  b = 0;
  if(jd > 2299160){
    a = Math.floor((jd - 1867216.25) / 36524.25);
    b = 1+a-Math.floor(a / 4);
  }

  var bb = jd+b+1524;
  var cc = Math.floor((bb - 122.1) / 365.25);
  var dd = Math.floor(365.25 * cc);
  var ee = Math.floor((bb - dd) / 30.6001);
  day = (bb - dd) - Math.floor(30.6001 * ee);
  month = ee - 1;

  if (ee > 13) {
    cc += 1;
    month = ee - 13;
  }
  year = cc - 4716;
  var wd = gmod(jd + 1, 7) + 1;

  var iyear = 10631./30.;
  var epochastro = 1948084;
  var epochcivil = 1948085;

  var shift1 = 8.01 / 60.;

  var z = jd-epochastro;
  var cyc = Math.floor(z/10631.);
  z = z - 10631 * cyc;
  var j = Math.floor((z - shift1) / iyear);
  var iy = 30 * cyc + j;
  z = z - Math.floor(j * iyear + shift1);
  var im = Math.floor((z + 28.5001) / 29.5);

  if (im == 13) im = 12;
  var id = z-Math.floor(29.5001*im-29);

  return [
    day,       //calculated day (CE)
    month - 1, //calculated month (CE)
    year,      //calculated year (CE)
    jd - 1,    //julian day number
    wd - 1,    //weekday number
    id,        //islamic date
    im - 1,    //islamic month
    iy         //islamic year
  ];
}

function writeIslamicDate(date, adjustment) {
  var wdNames = ["Ahad", "Ithnin", "Thulatha", "Arbaa", "Khams", "Jumuah", "Sabt"];
  var iMonthNames = ["Muharram", "Safar", "Rabi'ul Awwal", "Rabi'ul Akhir", "Jumadal Ula", "Jumadal Akhira",
                     "Rajab", "Sha'ban", "Ramadan", "Shawwal", "Dhul Qa'ada", "Dhul Hijja"];
  var iDate = kuwaiticalendar(date, adjustment);
  var outputIslamicDate = wdNames[iDate[4]] + ", " + iDate[5] + " " +
                          iMonthNames[iDate[6]] + " " + iDate[7] + " AH";
  return outputIslamicDate;
}

// No date or adjust
console.log(writeIslamicDate());
// No date, adjust to tomorrow
console.log(writeIslamicDate(undefined, 1));
// Date for 1 Jan 2017
console.log(writeIslamicDate(new Date(2017,0,1)));
// Date for 1 Jan 2017, adjust by -1 day
console.log(writeIslamicDate(new Date(2017,0,1), -1));

＆＃13;

Answer 2

你可以使用moment-hijri.js这是一个强大的库来转换日期

Git Repo

moment('2014-11-28 16:40:00', 'YYYY-M-D HH:mm:ss').endOf('iMonth').format('iYYYY/iM/iD HH:mm:ss'); // 1436/2/30 23:59:59

JSFIDDEL Exemple

如何将javascript日期转换为hijri格式？

2 个答案: