Fungsi JQuery DateTime - Penyenaraian Lengkap

3 Ini adalah satu -satunya fungsi jQuery tarikh/masa yang anda perlukan. Ia berfungsi lebih baik daripada mana -mana perpustakaan tarikh/masa lain di luar sana dan mempunyai overhead yang minimum, kelajuan dan ketepatan yang dijamin. Termasuk fungsi untuk: Dapatkan tarikh, tukar tarikh, tarikh yang sah, rentetan setakat ini, tahun lompatan, tarikh bandingkan, tarikh format, zon waktu dan timbunan orang lain !!! Muat turun jQuery4u.datetime.js

Takeaways Key

Fungsi JQuery DateTime sangat serba boleh, menawarkan pelbagai manipulasi tarikh dan masa, termasuk mendapatkan tarikh, menukar tarikh, mengesahkan tarikh, dan membandingkan tarikh.

Fungsi ini juga termasuk keupayaan untuk menukar rentetan tarikh sehingga kini objek, tentukan sama ada tarikh berlepas dan pulangan sah, dan mengesan jika setahun adalah tahun lompat.

Perpustakaan JQuery4u.Datetime.js juga termasuk fungsi pemformatan tarikh yang komprehensif, sama dengan fungsi tarikh PHP, yang membolehkan format tarikh tersuai.

Perpustakaan mudah dilaksanakan, dengan overhead yang minimum memastikan kelajuan dan ketepatan, menjadikannya pilihan pilihan ke atas perpustakaan tarikh/masa lain.
• Tarikh JQuery/Masa Lengkap Lengkap
Soalan Lazim (Soalan Lazim) Mengenai Fungsi JavaScript DateTime
Apakah perbezaan antara tarikh JavaScript () dan tarikh baru ()? Walau bagaimanapun, mereka berfungsi dengan cara yang berbeza. Apabila anda menggunakan tarikh () sebagai fungsi tanpa kata kunci 'baru', ia mengembalikan tarikh dan masa semasa sebagai rentetan. Sebaliknya, apabila anda menggunakan tarikh baru (), ia mengembalikan objek tarikh baru yang mewakili tarikh dan masa semasa.

Bagaimana saya boleh memformat tarikh dalam JavaScript? Kaedah yang paling biasa ialah menggunakan fungsi todatestring (), yang menukarkan tarikh ke format yang lebih mudah dibaca. Anda juga boleh menggunakan kaedah seperti tolocaledatestring () atau toisoString () untuk memformat tarikh mengikut locale atau dalam format standard ISO masing -masing. Sebagai contoh, untuk menambah 5 hari ke tarikh semasa, anda akan menggunakan kod berikut:

<span>/*___ FILE: "JQUERY4U.datetime.js" ___*/
</span><span>;(function($)
</span><span>{
</span>    <span>/**
</span><span>     * jQuery Date and time functions - Complete List
</span><span>     */
</span>    <span>var JQUERY4U = JQUERY4U || {};
</span>    <span>JQUERY4U.DATETIME =
</span>    <span>{
</span>        <span>/**
</span><span>         * Name of this class (used for error handling and/or debugging purposes)
</span><span>         * <span>@type String
</span></span><span>         */
</span>        <span>name: 'JQUERY4U.DATETIME',
</span>
        <span>init: function()
</span>        <span>{
</span>            <span>JQUERY4U.UTIL.handleErrors(this);
</span>            <span>Date.prototype.<span>JQUERY4UFormat</span> = this.format;
</span>        <span>},
</span>
        <span>/**
</span><span>         * Return today's date in dd/mm/yyyy format
</span><span>         * <span>@returns <span>{String}</span> Date in dd/mm/yyyy format
</span></span><span>         */
</span>        <span>todaysDate: function()
</span>        <span>{
</span>            <span>return this.futureDateDays(0);
</span>        <span>},
</span>
        <span>/**
</span><span>         * Return tomorrow's date in dd/mm/yyyy format
</span><span>         * <span>@returns <span>{String}</span> Date in dd/mm/yyyy format
</span></span><span>         */
</span>        <span>tomorrowsDate: function()
</span>        <span>{
</span>            <span>return this.futureDateDays(1);
</span>        <span>},
</span>
        <span>/**
</span><span>         * Return date 7 days from now in dd/mm/yyyy format
</span><span>         * <span>@returns <span>{String}</span> Date in dd/mm/yyyy format
</span></span><span>         */
</span>        <span>weekFromToday: function()
</span>        <span>{
</span>            <span>return this.futureDateDays(7);
</span>        <span>},
</span>
        <span>/**
</span><span>         * Return the first day of the next month
</span><span>         * <span>@returns <span>{String}</span> Date in dd/mm/yyyy format
</span></span><span>         */
</span>        <span>firstDayNextMonth: function()
</span>        <span>{
</span>            <span>var today = new Date();
</span>            nextMonth <span>= new Date(today.getFullYear(), today.getMonth() + 1, 1);
</span>            nextMonth<span>.getDate() +'/'+ (nextMonth.getMonth() + 1) +'/'+ nextMonth.getFullYear();
</span>            <span>return this.leadingZero(nextMonth.getDate()) +'/'+ this.leadingZero(nextMonth.getMonth() + 1) +'/'+ nextMonth.getFullYear();
</span>        <span>},
</span>
        <span>/**
</span><span>         * Returns x number of dates date in the future in dd/mm/yyyy format
</span><span>         * <span>@param <span>{Integer}</span> days Number of days into the future
</span></span><span>         * <span>@returns <span>{String}</span> Date in dd/mm/yyyy format
</span></span><span>         */
</span>        <span>futureDateDays: function(days)
</span>        <span>{
</span>            <span>var futureDate = new Date();
</span>            futureDate<span>.setDate(futureDate.getDate() + days);
</span>            <span>return this.leadingZero(futureDate.getDate()) +'/'+ this.leadingZero(futureDate.getMonth() + 1) +'/'+ this.leadingZero(futureDate .getFullYear());
</span>        <span>},
</span>
        <span>/**
</span><span>         * Return the current time in HHMM format
</span><span>         * <span>@returns <span>{String}</span> Time in HHMM (e.g. 23:12) format
</span></span><span>         */
</span>        <span>timeHHMM: function()
</span>        <span>{
</span>            <span>var today = new Date();
</span>            <span>return this.leadingZero(today.getHours()) + this.leadingZero(today.getMinutes());
</span>        <span>},
</span>
        <span>/**
</span><span>         * Return the current time in HHMMSS format
</span><span>         * <span>@returns <span>{String}</span> Time in HHMMSS (e.g. 23:12:33) format
</span></span><span>         */
</span>        <span>timeHHMMSS: function()
</span>        <span>{
</span>            <span>var today = new Date();
</span>            <span>return this.leadingZero(today.getHours()) +':'+ this.leadingZero(today.getMinutes()) +':'+ this.leadingZero(today.getSeconds());
</span>        <span>},
</span>
        <span>/**
</span><span>         * Takes a date string in Australian format and returns date string in US format
</span><span>         * <span>@param <span>{String}</span> dateStr Date in dd/mm/yyyy format
</span></span><span>         * <span>@param <span>{String}</span> <span>[separator=<span>"-"</span>]</span> separator character in return date string
</span></span><span>         * <span>@returns <span>{String}</span> date in mm/dd/yyyy format
</span></span><span>         */
</span>        <span>convertUSFormat: function(dateStr<span>, separator</span>)
</span>        <span>{
</span>            <span>var separator = (typeof(separator) == 'undefined') ? '-' : separator;
</span>            <span>var re = new RegExp('([0-9]{2})/([0-9]{2})/([0-9]{4})', 'm');
</span>            <span>var matches = re.exec(dateStr);
</span>            <span>return matches[2] + separator + matches[1] + separator + matches[3];
</span>        <span>},
</span>
        <span>/**
</span><span>         * Convert date in mm/dd/yyyy format and return in dd-mm-yyyy format (depending upon separator)
</span><span>         * <span>@param <span>{String}</span> dateStr Date in mm/dd/yyyy format
</span></span><span>         * <span>@param <span>{String}</span> <span>[separator=<span>"-"</span>]</span> Separator character in return date string
</span></span><span>         * <span>@returns <span>{String}</span> Date in mm-dd-yyyy format (presuming "-" is separator character)
</span></span><span>         */
</span>        <span>convertUStoAUSDate: function(dateStr<span>, separator</span>)
</span>        <span>{
</span>            <span>var separator = (typeof(separator) == 'undefined') ? '-' : separator;
</span>            <span>var re = new RegExp('([0-9]{2})/([0-9]{2})/([0-9]{4})', 'm');
</span>            <span>var matches = re.exec(dateStr);
</span>            <span>return matches[2] + separator + matches[1] + separator + matches[3];
</span>        <span>},
</span>
        <span>/**
</span><span>         * Return whether the supplied date components form the expected date
</span><span>         * <span>@param <span>{String}</span> year
</span></span><span>         * <span>@param <span>{String}</span> month
</span></span><span>         * <span>@param <span>{String}</span> day
</span></span><span>         * <span>@returns <span>{Boolean}</span> True if the date components match the date values in Date object
</span></span><span>         */
</span>        <span>isValidDate: function(year<span>, month, day</span>)
</span>        <span>{
</span>            <span>var dt = new Date(parseInt(year, 10), parseInt(month, 10)-1, parseInt(day, 10));
</span>            <span>if(dt.getDate() != parseInt(day, 10) || dt.getMonth() != (parseInt(month, 10)-1) || dt.getFullYear() != parseInt(year, 10))
</span>            <span>{
</span>                <span>return false;
</span>            <span>}
</span>
            <span>return true;
</span>        <span>},
</span>
        <span>/**
</span><span>         * Takes a date object and returns in yyyymmdd format
</span><span>         * <span>@param <span>{Date Object}</span> dateObj
</span></span><span>         * <span>@returns <span>{String}</span> Date in yyyymmdd format
</span></span><span>         */
</span>        <span>dateToYYYYMMDD: function(dateObj)
</span>        <span>{
</span>            <span>return  (dateObj.getFullYear() + this.leadingZero(dateObj.getMonth() + 1) + this.leadingZero(dateObj.getDate())).toString();
</span>        <span>},
</span>
        <span>/**
</span><span>         * Takes a date object and returns in ddmmyyyy format
</span><span>         * <span>@param <span>{Date Object}</span> dateObj
</span></span><span>         * <span>@returns <span>{String}</span> Date in ddmmyyyy format
</span></span><span>         */
</span>        <span>dateToDDMMYYYY: function(dateObj)
</span>        <span>{
</span>            <span>return  (this.leadingZero(dateObj.getDate()) + this.leadingZero(dateObj.getMonth() + 1) + dateObj.getFullYear()).toString();
</span>        <span>},
</span>
        <span>/**
</span><span>         * Takes a date string in dd/mm/yyyy format
</span><span>         * <span>@param <span>{String}</span> dateString Date in dd/mm/yyyy format
</span></span><span>         * <span>@returns <span>{Date Object}</span> Returns false if date sring is invalid
</span></span><span>         */
</span>        <span>stringToDate: function(dateString)
</span>        <span>{
</span>            <span>try
</span>            <span>{
</span>                <span>var matches = dateString.match(/([0-9]{2})/([0-9]{2})/([0-9]{4})/);
</span>                <span>if(this.isValidDate(matches[3], matches[2], matches[1]) === false)
</span>                <span>{
</span>                    <span>return false;
</span>                <span>}
</span>
                <span>return new Date(matches[3], parseInt(matches[2], 10)-1, parseInt(matches[1], 10));
</span>            <span>}
</span>            <span>catch(e)
</span>            <span>{
</span>                <span>return false;
</span>            <span>}
</span>        <span>},
</span>
        <span>/**
</span><span>         * Adds leading zero if passed value is single digit
</span><span>         * <span>@param <span>{String}</span> val
</span></span><span>         * <span>@returns <span>{String}</span>
</span></span><span>         */
</span>        <span>leadingZero: function(val)
</span>        <span>{
</span>            <span>var str = val.toString();
</span>            <span>if(str.length == 1)
</span>            <span>{
</span>                str <span>= '0' + str;
</span>            <span>}
</span>
            <span>return str;
</span>        <span>},
</span>
        <span>/**
</span><span>         * Checks if return date is equal or after departure date
</span><span>         * <span>@param <span>{String}</span> departureDate
</span></span><span>         * <span>@param <span>{String}</span> returnDate
</span></span><span>         * <span>@returns <span>{Boolean}</span>
</span></span><span>         */
</span>        <span>isDepartureReturnDateValid: function(departureDate<span>, returnDate</span>)
</span>        <span>{
</span>            <span>var dep = this.stringToDate(departureDate);
</span>            <span>var ret = this.stringToDate(returnDate);
</span>            <span>if(dep > ret)
</span>            <span>{
</span>                <span>return false;
</span>            <span>}
</span>
            <span>return true;
</span>        <span>},
</span>
        <span>/**
</span><span>         * Detect whether the year supplied is a leap year
</span><span>         * <span>@param <span>{Integer}</span> year
</span></span><span>         * <span>@returns <span>{Boolean}</span>
</span></span><span>         */
</span>        <span>isLeapYear: function(year)
</span>        <span>{
</span>            year <span>= parseInt(year, 10);
</span>            <span>if(year % 4 == 0)
</span>            <span>{
</span>                <span>if(year % 100 != 0)
</span>                <span>{
</span>                    <span>return true;
</span>                <span>}
</span>                <span>else
</span>                <span>{
</span>                    <span>if(year % 400 == 0)
</span>                    <span>{
</span>                        <span>return true;
</span>                    <span>}
</span>                    <span>else
</span>                    <span>{
</span>                        <span>return false;
</span>                    <span>}
</span>                <span>}
</span>            <span>}
</span>            <span>return false;
</span>        <span>},
</span>
        <span>compareDates: function(<span>from, to</span>)
</span>        <span>{
</span>            <span>var dateResult = to.getTime() - from.getTime();
</span>            <span>var dateObj = {};
</span>            dateObj<span>.weeks =  Math.round(dateResult/(1000 * 60 * 60 * 24 * 7));
</span>            dateObj<span>.days = Math.ceil(dateResult/(1000 * 60 * 60 * 24));
</span>            dateObj<span>.hours = Math.ceil(dateResult/(1000 * 60 * 60));
</span>            dateObj<span>.minutes = Math.ceil(dateResult/(1000 * 60));
</span>            dateObj<span>.seconds = Math.ceil(dateResult/(1000));
</span>            dateObj<span>.milliseconds = dateResult;
</span>            <span>return dateObj;
</span>        <span>},
</span>
        <span>compareDatesDDMMYYYY: function(<span>from, to</span>)
</span>        <span>{
</span>            <span>from = from.split('/');
</span>            <span>from = new Date(from[2], from[1], from[0]);
</span>            to <span>= to.split('/');
</span>            to <span>= new Date(to[2], to[1], to[0]);
</span>            <span>return this.compareDates(from, to);
</span>        <span>},
</span>
        <span>/**
</span><span>         * Allow nice formatting of dates like PHP's Date function
</span><span>         * Derived from code written by Jac Wright at http://jacwright.com/projects/javascript/date_format
</span><span>         * <span>@param <span>{Date}</span> date JavaScript date object
</span></span><span>         * <span>@param <span>{String}</span> format Date format string
</span></span><span>         * <span>@returns <span>{String}</span>
</span></span><span>         */
</span>        <span>format: function()
</span>        <span>{
</span>            <span>var date,
</span>                format<span>,
</span>                args <span>= [].slice.call(arguments),
</span>                returnStr <span>= '',
</span>                curChar <span>= '',
</span>                months <span>= ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'],
</span>                days <span>= ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'],
</span>                methods <span>=
</span>                <span>{
</span>                    <span>// Day
</span>                    <span>d: function() { return (date.getDate() < 10 ? '0' : '') + date.getDate(); },
</span>                    <span><span>D</span>: function() { return days[date.getDay()].substring(0, 3); },
</span>                    <span>j: function() { return date.getDate(); },
</span>                    <span>l: function() { return days[date.getDay()]; },
</span>                    <span><span>N</span>: function() { return date.getDay() + 1; },
</span>                    <span><span>S</span>: function() { return (date.getDate() % 10 == 1 && date.getDate() != 11 ? 'st' : (date.getDate() % 10 == 2 && date.getDate() != 12 ? 'nd' : (date.getDate() % 10 == 3 && date.getDate() != 13 ? 'rd' : 'th'))); },
</span>                    <span>w: function() { return date.getDay(); },
</span>
                    <span>// Month
</span>                    <span><span>F</span>: function() { return months[date.getMonth()]; },
</span>                    <span>m: function() { return (date.getMonth() < 9 ? '0' : '') + (date.getMonth() + 1); },
</span>                    <span><span>M</span>: function() { return months[date.getMonth()].substring(0, 3); },
</span>                    <span>n: function() { return date.getMonth() + 1; },
</span>                    <span><span>Y</span>: function() { return date.getFullYear(); },
</span>                    <span>y: function() { return ('' + date.getFullYear()).substr(2); },
</span>
                    <span>// Time
</span>                    <span>a: function() { return date.getHours() < 12 ? 'am' : 'pm'; },
</span>                    <span><span>A</span>: function() { return date.getHours() < 12 ? 'AM' : 'PM'; },
</span>                    <span>g: function() { return date.getHours() % 12 || 12; },
</span>                    <span><span>G</span>: function() { return date.getHours(); },
</span>                    <span>h: function() { return ((date.getHours() % 12 || 12) < 10 ? '0' : '') + (date.getHours() % 12 || 12); },
</span>                    <span><span>H</span>: function() { return (date.getHours() < 10 ? '0' : '') + date.getHours(); },
</span>                    <span>i: function() { return (date.getMinutes() < 10 ? '0' : '') + date.getMinutes(); },
</span>                    <span>s: function() { return (date.getSeconds() < 10 ? '0' : '') + date.getSeconds(); },
</span>
                    <span>// Timezone
</span>                    <span><span>O</span>: function() { return (-date.getTimezoneOffset() < 0 ? '-' : '+') + (Math.abs(date.getTimezoneOffset() / 60) < 10 ? '0' : '') + (Math.abs(date.getTimezoneOffset() / 60)) + '00'; },
</span>                    <span><span>P</span>: function() { return (-date.getTimezoneOffset() < 0 ? '-' : '+') + (Math.abs(date.getTimezoneOffset() / 60) < 10 ? '0' : '') + (Math.abs(date.getTimezoneOffset() / 60)) + ':' + (Math.abs(date.getTimezoneOffset() % 60) < 10 ? '0' : '') + (Math.abs(date.getTimezoneOffset() % 60)); },
</span>                    <span><span>T</span>: function() { var m = date.getMonth(); date.setMonth(0); var result = date.toTimeString().replace(<span>/<span>^.+ (?(<span>[^)]</span>+))?$</span>/</span>, ''); date.setMonth(m); return result;},
</span>                    <span><span>Z</span>: function() { return -date.getTimezoneOffset() * 60; },
</span>
                    <span>// Full Date/Time
</span>                    <span>c: function() { return date.format("Y-m-d") + "T" + date.format("H:i:sP"); },
</span>                    <span>r: function() { return date.toString(); },
</span>                    <span><span>U</span>: function() { return date.getTime() / 1000; }
</span>                <span>};
</span>
            <span>if(typeof this.getMonth == 'function')
</span>            <span>{
</span>                date <span>= this;
</span>                format <span>= args[0];
</span>            <span>}
</span>            <span>else
</span>            <span>{
</span>                date <span>= args[0];
</span>                format <span>= args[1];
</span>            <span>}
</span>
            <span>for(var i = 0; i < format.length; i++)
</span>            <span>{
</span>                <span>var curChar = format.charAt(i);
</span>                <span>if(methods[curChar])
</span>                <span>{
</span>                    returnStr <span>+= methods[curChar].call();
</span>                <span>}
</span>                <span>else
</span>                <span>{
</span>                    returnStr <span>+= curChar;
</span>                <span>}
</span>            <span>}
</span>            <span>return returnStr;
</span>        <span>}
</span>    <span>};
</span>
    <span>JQUERY4U.DATETIME.init();
</span><span>})(jQuery);</span>

var date = tarikh baru ();

date.setDate (date.getdate () 5);

Bagaimana saya boleh membandingkan dua tarikh dalam JavaScript? Walau bagaimanapun, penting untuk diperhatikan bahawa pengendali ini membandingkan objek tarikh, bukan tarikh sebenar. Untuk membandingkan tarikh itu sendiri, anda harus menukarnya kepada format standard, seperti bilangan milisaat sejak zaman UNIX (1 Januari 1970), menggunakan kaedah getTime (). Cara paling mudah adalah untuk membuat objek tarikh baru tanpa sebarang argumen, yang akan mewakili tarikh dan masa semasa. Kemudian, anda boleh menggunakan kaedah seperti gethours (), getMinutes (), dan getSeconds () untuk mendapatkan masa semasa. Anda boleh lulus rentetan ke pembina tarikh, dan ia akan cuba menghuraikannya. Walau bagaimanapun, penting untuk diperhatikan bahawa parsing bergantung pada format rentetan, dan ia mungkin tidak berfungsi seperti yang diharapkan untuk semua format. Untuk mendapatkan nama hari itu, anda boleh membuat pelbagai nama dan menggunakan nombor sebagai indeks. setiap tahun yang sama rata dengan 4, kecuali selama bertahun -tahun yang sama rata dengan 100. Walau bagaimanapun, tahun -tahun yang sama -sama dibahagikan dengan 400 juga lompatan tahun. Ini akan memberi anda perbezaan dalam milisaat. Anda kemudian boleh menukar ini kepada hari, jam, minit, atau saat yang diperlukan. Perhatikan bahawa bulan itu berasaskan sifar, jadi Januari adalah 0, Februari adalah 1, dan sebagainya.

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