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xelaz/date.format.js

Created December 17, 2018 09:07
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  1. xelaz created this gist Dec 17, 2018.
    125 changes: 125 additions & 0 deletions date.format.js
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    Original file line number Diff line number Diff line change
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    /*
    * Date Format 1.2.3
    * (c) 2007-2009 Steven Levithan <stevenlevithan.com>
    * MIT license
    *
    * Includes enhancements by Scott Trenda <scott.trenda.net>
    * and Kris Kowal <cixar.com/~kris.kowal/>
    *
    * Accepts a date, a mask, or a date and a mask.
    * Returns a formatted version of the given date.
    * The date defaults to the current date/time.
    * The mask defaults to dateFormat.masks.default.
    */

    var dateFormat = function () {
    var token = /d{1,4}|m{1,4}|yy(?:yy)?|([HhMsTt])\1?|[LloSZ]|"[^"]*"|'[^']*'/g,
    timezone = /\b(?:[PMCEA][SDP]T|(?:Pacific|Mountain|Central|Eastern|Atlantic) (?:Standard|Daylight|Prevailing) Time|(?:GMT|UTC)(?:[-+]\d{4})?)\b/g,
    timezoneClip = /[^-+\dA-Z]/g,
    pad = function (val, len) {
    val = String(val);
    len = len || 2;
    while (val.length < len) val = "0" + val;
    return val;
    };

    // Regexes and supporting functions are cached through closure
    return function (date, mask, utc) {
    var dF = dateFormat;

    // You can't provide utc if you skip other args (use the "UTC:" mask prefix)
    if (arguments.length == 1 && Object.prototype.toString.call(date) == "[object String]" && !/\d/.test(date)) {
    mask = date;
    date = undefined;
    }

    // Passing date through Date applies Date.parse, if necessary
    date = date ? new Date(date) : new Date;
    if (isNaN(date)) throw SyntaxError("invalid date");

    mask = String(dF.masks[mask] || mask || dF.masks["default"]);

    // Allow setting the utc argument via the mask
    if (mask.slice(0, 4) == "UTC:") {
    mask = mask.slice(4);
    utc = true;
    }

    var _ = utc ? "getUTC" : "get",
    d = date[_ + "Date"](),
    D = date[_ + "Day"](),
    m = date[_ + "Month"](),
    y = date[_ + "FullYear"](),
    H = date[_ + "Hours"](),
    M = date[_ + "Minutes"](),
    s = date[_ + "Seconds"](),
    L = date[_ + "Milliseconds"](),
    o = utc ? 0 : date.getTimezoneOffset(),
    flags = {
    d: d,
    dd: pad(d),
    ddd: dF.i18n.dayNames[D],
    dddd: dF.i18n.dayNames[D + 7],
    m: m + 1,
    mm: pad(m + 1),
    mmm: dF.i18n.monthNames[m],
    mmmm: dF.i18n.monthNames[m + 12],
    yy: String(y).slice(2),
    yyyy: y,
    h: H % 12 || 12,
    hh: pad(H % 12 || 12),
    H: H,
    HH: pad(H),
    M: M,
    MM: pad(M),
    s: s,
    ss: pad(s),
    l: pad(L, 3),
    L: pad(L > 99 ? Math.round(L / 10) : L),
    t: H < 12 ? "a" : "p",
    tt: H < 12 ? "am" : "pm",
    T: H < 12 ? "A" : "P",
    TT: H < 12 ? "AM" : "PM",
    Z: utc ? "UTC" : (String(date).match(timezone) || [""]).pop().replace(timezoneClip, ""),
    o: (o > 0 ? "-" : "+") + pad(Math.floor(Math.abs(o) / 60) * 100 + Math.abs(o) % 60, 4),
    S: ["th", "st", "nd", "rd"][d % 10 > 3 ? 0 : (d % 100 - d % 10 != 10) * d % 10]
    };

    return mask.replace(token, function ($0) {
    return $0 in flags ? flags[$0] : $0.slice(1, $0.length - 1);
    });
    };
    }();

    // Some common format strings
    dateFormat.masks = {
    "default": "ddd mmm dd yyyy HH:MM:ss",
    shortDate: "m/d/yy",
    mediumDate: "mmm d, yyyy",
    longDate: "mmmm d, yyyy",
    fullDate: "dddd, mmmm d, yyyy",
    shortTime: "h:MM TT",
    mediumTime: "h:MM:ss TT",
    longTime: "h:MM:ss TT Z",
    isoDate: "yyyy-mm-dd",
    isoTime: "HH:MM:ss",
    isoDateTime: "yyyy-mm-dd'T'HH:MM:ss",
    isoUtcDateTime: "UTC:yyyy-mm-dd'T'HH:MM:ss'Z'"
    };

    // Internationalization strings
    dateFormat.i18n = {
    dayNames: [
    "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat",
    "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"
    ],
    monthNames: [
    "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec",
    "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"
    ]
    };

    // For convenience...
    Date.prototype.format = function (mask, utc) {
    return dateFormat(this, mask, utc);
    };