var date = new Date().toLocaleDateString("en-US");

此外，您可以使用两个参数调用方法toLocaleDateString：

var date = new Date().toLocaleDateString("en-US", {
    "year": "numeric",
    "month": "numeric"
});

有关MDN上此方法的详细信息。

这是我目前最喜欢的，因为它既灵活又模块化。它是（至少）三个简单函数的集合：

/**
 * Returns an array with date / time information
 * Starts with year at index 0 up to index 6 for milliseconds
 * 
 * @param {Date} date   date object. If falsy, will take current time.
 * @returns {[]}
 */
getDateArray = function(date) {
    date = date || new Date();
    return [
        date.getFullYear(),
        exports.pad(date.getMonth()+1, 2),
        exports.pad(date.getDate(), 2),
        exports.pad(date.getHours(), 2),
        exports.pad(date.getMinutes(), 2),
        exports.pad(date.getSeconds(), 2),
        exports.pad(date.getMilliseconds(), 2)
    ];
};

下面是pad函数：

 /**
 * Pad a number with n digits
 *
 * @param {number} number   number to pad
 * @param {number} digits   number of total digits
 * @returns {string}
 */
exports.pad = function pad(number, digits) {
    return new Array(Math.max(digits - String(number).length + 1, 0)).join(0) + number;
};

最后，我可以手动创建日期字符串，也可以使用一个简单的函数来实现：

/**
 * Returns nicely formatted date-time
 * @example 2015-02-10 16:01:12
 *
 * @param {object} date
 * @returns {string}
 */
exports.niceDate = function(date) {
    var d = exports.getDateArray(date);
    return d[0] + '-' + d[1] + '-' + d[2] + ' ' + d[3] + ':' + d[4] + ':' + d[5];
};

/**
 * Returns a formatted date-time, optimized for machines
 * @example 2015-02-10_16-00-08
 *
 * @param {object} date
 * @returns {string}
 */
exports.roboDate = function(date) {
    var d = exports.getDateArray(date);
    return d[0] + '-' + d[1] + '-' + d[2] + '_' + d[3] + '-' + d[4] + '-' + d[5];
};

不需要图书馆，并且考虑了时区。

因为有时您需要在服务器上进行计算。这可以是独立于服务器时区的。

常量currentTimezoneOffset=8；//UTC+8:00时区，更改Date.prototype.yyyymmdd=函数（）{返回[this.getFullYear（），（this.getMonth（）+1）.toString（）.padStart（2，“0”），//getMonththis.getDate（）.toString（）.padStart（2，“0”）].连接（'-'）；};函数getTodayDateStr（）{const d=新日期（）；//console.log（d）；const d2=新日期（d.getTime（）+（d.getTimezoneOffset（）+currentTimezoneOffset*60）*60*1000）；//console.log（d2，d2.yyyymmdd（））；返回d2.yyyymmdd（）；}console.log（getTodayDateStr（））；

在澳大利亚，我更喜欢使用此

(new Date()).toISOString().slice(0, 10).split("-").reverse().join("/")

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;

} ());

这有什么大不了的。。最干净的方法是

var currentDate=新日期（）.toLocaleString（）.slice（0,10）；