如何在JavaScript中获取当前日期？
当前回答
试用Date.js
毫秒
date.js.millisecond(); // 0.00
秒
date.js.second(); // 58
分钟
date.js.minute(); // 31
小时
date.js.hour(); // 6 (PM)
Days
date.js.day(); // Monday
周
date.js.week(); // (Week Of the Month / WOM) => 2
月
date.js.month(); // (Month) => November
TLM（三字母月）
date.js.tlmonth(); // (Month) => Dec
Year
date.js.year(); // (Year / String: "") => "2021"
季
date.js.season(); // (Fall / Season: seasons) => "fall"
当前时间（AM/PM）
date.js.time(); // (Time / Zone: "PDT/EDT etc.") => 10:04 AM
其他回答
你可以用这个
<script>
function my_curr_date() {
var currentDate = new Date()
var day = currentDate.getDate();
var month = currentDate.getMonth() + 1;
var year = currentDate.getFullYear();
var my_date = month+"-"+day+"-"+year;
document.getElementById("dateField").value=my_date;
}
</script>
HTML是
<body onload='return my_curr_date();'>
<input type='text' name='dateField' id='dateField' value='' />
</body>
能够以自定义格式呈现，并在不同地区使用月份名称：
const locale = 'en-us';
const d = new Date(date);
const day = d.getDate();
const month = d.toLocaleString(locale, { month: 'long' });
const year = d.getFullYear();
const time = d.toLocaleString(locale, { hour12: false, hour: 'numeric', minute: 'numeric'});
return `${month} ${day}, ${year} @ ${time}`; // May 5, 2019 @ 23:41
如果您希望格式化为字符串。
statusUpdate = "time " + new Date(Date.now()).toLocaleTimeString();
输出：“时间11:30:53 AM”
你可以使用我下面给出的DATE API，每天使用日期格式以及获取当前日期、昨天等。如何使用例如
var dt = new Date();
/// ANY DATE YOU WANT -- dt = new Date(""July 21, 1983 01:15:00"")
dateObj = dt.getFormattedDate();
alert( dateObj.isToday() );
alert( dateObj.todayDay() );
alert( dateObj.monthNameDayYear() );
(function () {
fnDateProcessor = function () {
var that = this;
return {
yyyymmdd: function (separator) {
var fdate = this.formatDate(true, true) ,
separator = separator ? separator : "-";
return fdate.year + separator + fdate.month + separator + fdate.day;
},
monthNameDayYear: function () {
var fdate = this.formatDate(true, true);
return fdate.monthName + " " + fdate.day + ", " + fdate.year;
},
ddmmyyyy: function (separator) {
var fdate = this.formatDate(true, true) ,
separator = separator ? separator : "/";
return fdate.day + separator + fdate.month + separator + fdate.year;
},
meridianTime: function () {
var fdate = this.formatDate();
return fdate.hour + ":" + fdate.minute + " " + fdate.meridian;
},
monthDay: function (separator) {
var fdate = this.formatDate();
separator = checkSeparator(separator);
return fdate.monthName.substring(0, 3) + separator + fdate.day;
},
weekMonthDayYear: function () {
var fdate = this.formatDate();
//separator = checkSeparator(separator);
return fdate.weekDay + " " + fdate.monthName.substring(0, 3) +
fdate.day + " ," + fdate.year;
},
timeZoneInclusive: function () {
return new Date(that);
},
todayDay: function () { return new Date().getDate(); },
todayMonth: function () { return new Date().getMonth() + 1; },
dateDay: function () { return this.formatDate().day; },
dateMonth: function () { return this.formatDate().month; },
isToday: function () { return this.sameDate(new Date()); },
isYesterday: function () {
d = new Date(); d.setDate(d.getDate() - 1);
return this.sameDate(d);
},
formatDate: function () {
var zeroPaddedMnth = true, zeroPaddedDay = false,
zeroPaddedHr = false, zeroPaddedMin = true;
// Possible to take Options arg that overide / merge to defaults
var monthNames = [
"January", "February", "March",
"April", "May", "June", "July",
"August", "September", "October",
"November", "December"
];
var weekDays = ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"];
var day = getFormattedDay(that.getDate(), zeroPaddedDay);
var monthIndex = that.getMonth();
var month = getFormattedMonth(monthIndex + 1, zeroPaddedMnth);
var year = that.getFullYear();
var wkDay = that.getDay();
var hour = getFormattedHour(that.getHours(), zeroPaddedHr);
var minute = getFormattedMinute(that.getMinutes(), zeroPaddedMin);
var meridian = getMeridian(that.getHours());
return {
"day": day, "monthName": monthNames[monthIndex], "month": month,
"weekDay": weekDays[wkDay], "year": year, "hour": hour, "minute": minute,
"meridian": meridian
};
},
compareDate: function (d2) { /// validates if caller is less than argument
d2 = _isString(d2) ? new Date(d2) : d2;
return !this.sameDate(d2)
&& typeof d2 != "number"
? that < d2 : false;
},
sameDate: function (d) {
return that.getFullYear() === d.getFullYear()
&& that.getDate() === d.getDate()
&& that.getMonth() === d.getMonth();
},
dateAfter: function (separator) {
var fdate = this.formatDate();
var separator = separator ? separator : "-";
return fdate.year + separator + fdate.month + separator + (fdate.day + 1);
}
};
};
function _isString(obj) {
var toString = Object.prototype.toString;
return toString.call(obj) == '[object String]';
}
function checkSeparator(separator) {
// NOT GENERIC ... NEEDS REVISION
switch (separator) {
case " ": sep = separator; break;
case ",": sep = " ,"; break;
default:
sep = " "; break;
}
return sep;
}
function getFormattedHour(h, zeroPadded) {
h = h % 12;
h = h ? h : 12; // 12 instead of 00
return zeroPadded ? addZero(h) : h;
}
function getFormattedMinute(m, zeroPadded) {
return zeroPadded ? addZero(m) : m;
}
function getFormattedDay(dd, zeroPadded) {
return zeroPadded ? addZero(dd) : dd;
}
function getFormattedMonth(mm, zeroPadded) {
return zeroPadded ? addZero(mm) : mm;
}
function getMeridian(hr) {
return hr >= 12 ? 'PM' : 'AM';
}
function addZero(i) {
if (i < 10) {
i = "0" + i;
}
return i;
}
Date.prototype.getFormattedDate = fnDateProcessor;
} ());
Date.prototype.toLocalFullDateStringYYYYMMDDHHMMSS = function () {
if (this != null && this != undefined) {
let str = this.getFullYear();
str += "-" + round(this.getMonth() + 1);
str += "-" + round(this.getDate());
str += "T";
str += round(this.getHours());
str += ":" + round(this.getMinutes());
str += ":" + round(this.getSeconds());
return str;
} else {
return this;
}
function round(n){
if(n < 10){
return "0" + n;
}
else return n;
}};
