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Group: Improve compatibility with jQuery Globalize

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Added `group_time24Hour` & `group_dateInvalid` options

Modified `group_months`, `group_week` and `group_time` options.
This commit is contained in:
Rob Garrison 2015-10-25 20:10:43 -05:00
parent a1c9e95639
commit e3d2fd9a17
4 changed files with 330 additions and 30 deletions
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4
dist/js/widgets/widget-grouping.min.js vendored
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291
docs/example-widget-grouping.html
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@ -98,6 +98,11 @@ tr.group-header.collapsed td i {
group_week : [ "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday" ],
group_time : [ "AM", "PM" ],
// use 12 vs 24 hour time
group_time24Hour : false,
// group header text added for invalid dates
group_dateInvalid : 'Invalid Date',
// this function is used when "group-date" is set to create the date string
// you can just return date, date.toLocaleString(), date.toLocaleDateString() or d.toLocaleTimeString()
// reference: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date#Conversion_getter
@ -155,6 +160,17 @@ tr.group-header.collapsed td i {
<ul>
<li>This widget will <strong>only work</strong> in tablesorter version 2.8+ and jQuery version 1.7+.</li>
<li>Please do not use this widget in very large tables (it might be really slow) <del>or when your table includes multiple tbodies</del>.<br><br></li>
<li>In <span class="version">v2.23.6</span>
<ul>
<li>Added <code>group_time24Hour</code> (set 12 vs 24 hour time) &amp; <code>group_dateInvalid</code> (group header text) options.</li>
<li>Improved compatibility of the group widget with jQuery Globalize.</li>
<li>The <code>group_months</code> option will now accept a zero or one-based array or object of month names.</li>
<li>The <code>group_week</code> option will now accept an object using three-letter English weekday abbreviations as a key.</li>
<li>The <code>group_time</code> option will now accept an object using "am" or "pm" as a key.</li>
<li>For more detail, see the description column for the option in the Options section below.</li>
<li>For information on how to load &amp; use Globalize, see the Globalization section below.</li>
</ul>
</li>
<li>In <span class="version">v2.23.3</span>
<ul>
<li>Added <code>group_forceColumn</code> &amp; <code>group_enforceSort</code> options for force column grouping.</li>
@ -313,7 +329,7 @@ group_separator : /[/.]/</pre>
<tr id="group_forcecolumn">
<td><a href="#" class="permalink">group_forceColumn</a></td>
<td><code><code>[]</code></td>
<td><code>[]</code></td>
<td>
Force the group widget to only apply to one column (<span class="version">v2.23.3</span>).
<div class="collapsible">
@ -347,32 +363,105 @@ group_separator : /[/.]/</pre>
</tr>
<tr id="group_months">
<td>
<a href="#" class="permalink">group_months</a><br>
group_week<br>
group_time
</td>
<td><a href="#" class="permalink">group_months</a></td>
<td>(see description)</td>
<td>
Name arrays included so that the language of the date groups can be modified easily. Defaults (English):
<ul>
<li>group_months: (<code>[ &quot;Jan&quot;, &quot;Feb&quot;, &quot;Mar&quot;, &quot;Apr&quot;, &quot;May&quot;, &quot;Jun&quot;, &quot;Jul&quot;, &quot;Aug&quot;, &quot;Sep&quot;, &quot;Oct&quot;, &quot;Nov&quot;, &quot;Dec&quot; ]</code>) - Month names.</li>
<li>group_week: (<code>[ &quot;Sunday&quot;, &quot;Monday&quot;, &quot;Tuesday&quot;, &quot;Wednesday&quot;, &quot;Thursday&quot;, &quot;Friday&quot;, &quot;Saturday&quot; ]</code>) - Named days of the week.</li>
<li>group_time: (<code>[ &quot;AM&quot;, &quot;PM&quot; ]</code>) - Time of day.</li>
</ul>
Name arrays included so that the language of the date groups can be modified easily (<span class="version updated">v2.23.6</span>; see "Globalization" section for details).
<div class="collapsible">
<p>Showing defaults (English):</p>
<pre class="prettyprint lang-js">// zero-based array
group_months: [ &quot;Jan&quot;, &quot;Feb&quot;, &quot;Mar&quot;, &quot;Apr&quot;, &quot;May&quot;, &quot;Jun&quot;, &quot;Jul&quot;, &quot;Aug&quot;, &quot;Sep&quot;, &quot;Oct&quot;, &quot;Nov&quot;, &quot;Dec&quot; ]</pre>
As of <span class="version">v2.23.6</span>, this option will also work with an object with a one-base "index":
<pre class="prettyprint lang-js">// get Months list from CLDR (see Globalization section for more info)
var months = new Cldr( 'en' ).main([ "dates/calendars/gregorian/months", "format", "abbreviated" ]);
// one-based object (CLDR output example)
// months = { 1: "Jan", 2: "Feb", 3: "Mar", 4: "Apr", 5: "May", 6: "Jun", 7: "Jul", 8: "Aug", 9: "Sep", 10: "Oct", 11: "Nov", 12: "Dec" }
// then in the widgetOptions,
group_months: months</pre>
A one-based array of month names will also work.
<pre class="prettyprint lang-js">group_months: [ "", "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" ]</pre>
</div>
</td>
</tr>
<tr id="group_week">
<td><a href="#" class="permalink">group_week</a></td>
<td>(see description)</td>
<td>
Name arrays included so that the language of the date groups can be modified easily (<span class="version updated">v2.23.6</span>; see "Globalization" for details).
<div class="collapsible">
<p>Showing defaults (English):</p>
<pre class="prettyprint lang-js">// zero-based index
group_week: [ &quot;Sunday&quot;, &quot;Monday&quot;, &quot;Tuesday&quot;, &quot;Wednesday&quot;, &quot;Thursday&quot;, &quot;Friday&quot;, &quot;Saturday&quot; ]</pre>
As of <span class="version">v2.23.6</span>, this option will also work with an object using a three-letter English weekday abbreviated names as a key:
<pre class="prettyprint lang-js">// get weekdays list from CLDR (see Globalization section for more info)
var weekdays = new Cldr( 'en' ).main([ "dates/calendars/gregorian/days", "format", "abbreviated" ]);
// week-abbreviation based object
// weekdays = { sun: "Sun", mon: "Mon", tue: "Tue", wed: "Wed", thu: "Thu", fri: "Fri", sat: "Sat" }
// then in the widgetOptions,
group_week: weekdays</pre>
At this point, if you're going to use Globalization, it would be best to use the <code>group_dateString</code> to use <code>globalize.dateFormatter</code> to format the date because not all locales start their week on Sunday.
</div>
</td>
</tr>
<tr id="group_time">
<td><a href="#" class="permalink">group_time</a></td>
<td>(see description)</td>
<td>
Name arrays included so that the language of the date groups can be modified easily (<span class="version updated">v2.23.6</span>; see "Globalization" for details).
<div class="collapsible">
<p>Defaults (English):</p>
<pre class="prettyprint lang-js">group_time: [ &quot;AM&quot;, &quot;PM&quot; ]</pre>
As of <span class="version">v2.23.6</span>, this option will also work with an object in this format:
<pre class="prettyprint lang-js">// get time of day list from CLDR (see Globalization section for more info)
var periods = cldr.main([ "dates/calendars/gregorian/dayPeriods", "format", "abbreviated" ]);
/* time of day: CLDR returns this object:
peroids = {
afternoon1: "in the afternoon",
am: "AM",
am-alt-variant: "am",
evening1: "in the evening",
midnight: "midnight",
morning1: "in the morning",
night1: "at night",
noon: "noon",
pm: "PM",
pm-alt-variant: "pm"
}
then in the widgetOptions,*/
group_time: periods</pre>
If you want to use a time of day other than "am" or "pm", then you'll need to use the <code>group_dateString</code> to format the date; see the example in the Globalization section below.
</div>
</td>
</tr>
<tr id="group_time24hour">
<td><span class="permalink">group_time24Hour</span></td>
<td><code>false</code></td>
<td>Set to <code>true</code> to display time in 24 hour format (<span class="version">v2.23.6</span>).</td>
</tr>
<tr id="group_dateinvalid">
<td><span class="permalink">group_dateInvalid</span></td>
<td><code>'Invalid Date'</code></td>
<td>Message added to the Group header if a date is invalid (<span class="version">v2.23.6</span>).</td>
</tr>
<tr id="group_datestring">
<td><a href="#" class="permalink">group_dateString</a></td>
<td>(see description)</td>
<td>
When the <code>&quot;group-date&quot;</code> class name is set on a column, this function is used to format the date string. This is the default function:
When the <code>&quot;group-date&quot;</code> class name is set on a column, this function is used to format the date string (<span class="version updated">v2.23.6</span>).
<div class="collapsible">
<pre class="prettyprint lang-js">// you can just return date, date.toLocaleString(), date.toLocaleDateString() or d.toLocaleTimeString()
group_dateString : function(date) {
<p>This is the default function:</p>
<pre class="prettyprint lang-js">// you can just return date, date.toLocaleString(), date.toLocaleDateString() or d.toLocaleTimeString()
group_dateString : function(date, config, $header ) {
return date.toLocaleString();
}</pre>
Other functions that can be used are <code>date</code> (alone), <code>date.toLocaleString()</code>, <code>date.toLocaleDateString()</code> or <code>d.toLocaleTimeString()</code>. See <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date#Conversion_getter">this reference</a> for more details.
<p>In <span class="version">v2.23.6</span>, this widget was updated to make it easier to use with <a href="https://github.com/jquery/globalize">jQuery Globalize</a>.</p>
<p>Additionally, two new parameters were added: <a href="index.html#config"><code>config</code></a> and <code>$header</code> (a jQuery object of the associated header cell).</p>
</div>
</td>
</tr>
@ -466,6 +555,178 @@ group_dateString : function(date) {
</table>
<span class="remark">*</span> When sorting some columns, different group headers with the same group name may exist (try "group-date-week" and "group-date-time"). To make these columns sort specifically by the group you want, you'll need to modify the parser.
</div>
<h3><a href="#">Globalization</a></h3>
<div>
<h3>jQuery Globalize</h3>
These instructions are specific to <a href="https://github.com/jquery/globalize">jQuery Globalize</a>.
<p><a href="http://jsfiddle.net/Mottie/4ac5kr3o/15/">Here is a demo</a> showing how all the code comes together; there is no official site with JSON files available to load into the demo, so only the required snippets of CLDR data are included in the demo.</p>
<h4>Make sure to include files from:</h4>
<ul>
<li>jQuery Globalize:
<ul>
<li>Process CLDR data into usable formats.</li>
<li>Install from npm (<code>npm install globalize cldr-data</code>), bower (<code>bower install globalize</code>), or</li>
<li>Download from <a href="https://github.com/jquery/globalize">https://github.com/jquery/globalize</a>.</li>
<li>Depending on the data in your table, you'll need to <a href="https://github.com/jquery/globalize#pick-the-modules-you-need">pick which modules</a> to include; currently for the date module, you'll need to load the number module first (<a href="https://github.com/jquery/globalize/issues/543">ref</a>).</li>
<li>Here is an example of how to load all files from Cdnjs (make sure to use the most recent version):
<pre class="prettyprint lang-html">&lt;script src="https://cdnjs.cloudflare.com/ajax/libs/globalize/1.0.0/globalize.min.js"&gt;&lt;/script&gt;
&lt;script src="https://cdnjs.cloudflare.com/ajax/libs/globalize/1.0.0/globalize/currency.min.js"&gt;&lt;/script&gt;
&lt;script src="https://cdnjs.cloudflare.com/ajax/libs/globalize/1.0.0/globalize/number.min.js"&gt;&lt;/script&gt;
&lt;script src="https://cdnjs.cloudflare.com/ajax/libs/globalize/1.0.0/globalize/date.min.js"&gt;&lt;/script&gt;
&lt;script src="https://cdnjs.cloudflare.com/ajax/libs/globalize/1.0.0/globalize/message.min.js"&gt;&lt;/script&gt;
&lt;script src="https://cdnjs.cloudflare.com/ajax/libs/globalize/1.0.0/globalize/plural.min.js"&gt;&lt;/script&gt;
&lt;script src="https://cdnjs.cloudflare.com/ajax/libs/globalize/1.0.0/globalize/relative-time.min.js"&gt;&lt;/script&gt;
</pre>
</li>
</ul>
</li>
<li>cldrjs:
<ul>
<li>Needed by Globalize to traverse CLDR data.</li>
<li>Install from npm (<code>npm install cldrjs</code>), bower (<code>bower install cldrjs</code>), or</li>
<li>Download from <a href="https://github.com/rxaviers/cldrjs">https://github.com/rxaviers/cldrjs</a>.</li>
<li>You will likely need to include all files: <code>cldr.js</code>, <code>event.js</code>, <code>supplemental.js</code> and <code>unresolved.js</code>.</li>
<li>Here is an example of how to load all files from Cdnjs (make sure to use the most recent version):
<pre class="prettyprint lang-html">&lt;script src="https://cdnjs.cloudflare.com/ajax/libs/cldrjs/0.4.3/cldr.min.js"&gt;&lt;/script&gt;
&lt;script src="https://cdnjs.cloudflare.com/ajax/libs/cldrjs/0.4.3/cldr/event.min.js"&gt;&lt;/script&gt;
&lt;script src="https://cdnjs.cloudflare.com/ajax/libs/cldrjs/0.4.3/cldr/supplemental.min.js"&gt;&lt;/script&gt;
&lt;script src="https://cdnjs.cloudflare.com/ajax/libs/cldrjs/0.4.3/cldr/unresolved.min.js"&gt;&lt;/script&gt;
</pre>
</li>
</ul>
</li>
<li>CLDR data:
<ul>
<li>Needed by Globalize &amp; cldrjs.</li>
<li>Install from npm (<code>npm install cldr-data</code>), bower (<code>bower install cldr-data</code>), or</li>
<li>Find the latest version from here: <a href="http://cldr.unicode.org/index/downloads">http://cldr.unicode.org/index/downloads</a></li>
<li>And download the files from here: <a href="http://unicode.org/Public/cldr/">http://unicode.org/Public/cldr/</a> (it is really hard to find this page).</li>
<li>For more information on which json files you'll need to include, check out <a href="https://github.com/jquery/globalize#2-cldr-content">these instructions</a>.</li>
</ul>
</li>
</ul>
<h4>Initialization</h4>
The next step is loading the CLDR data into Globalize; please see <a href="https://github.com/jquery/globalize/blob/master/doc/cldr.md#how-do-i-load-cldr-data-into-globalize">this page</a> for more details.
<pre class="prettyprint lang-js">
// code to show how to load a language using jQuery (make sure it was loaded)
$(function() {
var hasInitialized = false,
loadLanguage = function( lang ) {
// Use $.getJSON instead of $.get if your server is not configured to return the
// right MIME type for .json files.
var files = [];
if ( !hasInitialized ) {
files = [
/* core */
$.getJSON( 'cldr-data/supplemental/likelySubtags.json' ),
/* currency */
$.getJSON( 'cldr-data/supplemental/currencyData.json' ),
/* date */
$.getJSON( 'cldr-data/supplemental/timeData.json' ),
$.getJSON( 'cldr-data/supplemental/weekData.json' ),
/* number */
$.getJSON( 'cldr-data/supplemental/numberingSystems.json' ),
/* plural */
$.getJSON( 'cldr-data/supplemental/plurals.json' ),
$.getJSON( 'cldr-data/supplemental/ordinals.json' )
];
}
files = files.concat([
/* currency */
$.getJSON( 'cldr-data/main/' + lang + '/currencies.json' ),
/* date */
$.getJSON( 'cldr-data/main/' + lang + '/ca-gregorian.json' ),
$.getJSON( 'cldr-data/main/' + lang + '/timeZoneNames.json' ),
/* number */
$.getJSON( 'cldr-data/main/' + lang + '/numbers.json' ),
/* relative time */
$.getJSON( 'cldr-data/main/' + lang + '/dateFields.json' ),
/* unit */
$.getJSON( 'cldr-data/main/' + lang + '/units.json' )
]);
$.when
.apply( $, files )
.then( function() {
// Normalize $.get results, we only need the JSON, not the request statuses.
return [].slice.apply( arguments, [ 0 ] ).map( function( result ) {
return result[ 0 ];
});
})
.then( Globalize.load )
.then( function() {
if ( !hasInitialized ) {
// initialization code goes here
}
hasInitialized = true;
// code to run after each new language has loaded goes here
});
};
// initial language load
loadLanguage( 'en' );
});
</pre>
<h4>Usage</h4>
Use Globalize with tablesorter &amp; the group widget inside of the <code>group_dateString</code> callback function.
<p>In <span class="version">v2.23.6</span></p>
<ul>
<li>The <code>group_months</code>, <code>group_week</code> &amp; <code>group_time</code> options were modified to work with CLDR data.</li>
<li><code>group_months</code> option will work with either a zero-based array of month names (basic use), or an object with a key using a one-based indexed with a month name value pair (the CLDR format; see the "months" comment in code example below).</li>
<li><code>group_week</code> option will work with either a zero-based array of weekday names (basic use), or an object with a key using three letter abbreviations of English weekday names with a localized weekday name value pair (the CLDR format; see the "days of week" comment in the code below).</li>
<li><code>group_time</code> option will now accept an object using "am" or "pm" (both lower case) as a key.<br><br></li>
<li>The <code>group_dateString</code> callback function was updated with two additional parameters to allow access to table data. See the "Options" section above for more details.</li>
<li>Check out <a href="http://jsfiddle.net/Mottie/4ac5kr3o/15/">this demo</a> using the code below</li>
</ul>
<pre class="prettyprint lang-js">$( function() {
// using an english example
var lang = 'en',
cldr = new Cldr( lang ),
// Globalize.load already done!!
globalize = Globalize.locale( lang ),
// months: CLDR returns an object { 1: "Jan", 2: "Feb", 3: "Mar", ..., 12: "Dec" }
months = cldr.main([ "dates/calendars/gregorian/months", "format", "abbreviated" ]),
// days of week: CLDR returns { sun: "Sun", mon: "Mon", tue: "Tue", wed: "Wed", thu: "Thu", ... }
week = cldr.main([ "dates/calendars/gregorian/days", "format", "abbreviated" ]),
/* time of day: CLDR returns
{ afternoon1: "in the afternoon", am: "AM", am-alt-variant: "am", evening1: "in the evening", midnight: "midnight",
morning1: "in the morning", night1: "at night", noon: "noon", pm: "PM", pm-alt-variant: "pm" } */
periods = cldr.main([ "dates/calendars/gregorian/dayPeriods", "format", "abbreviated" ]);
$( 'table' ).tablesorter({
theme : 'blue',
widgets: [ 'group', 'zebra' ],
widgetOptions : {
group_months : months,
group_week : week,
// setting group_times to an empty string forces "group-time" to use group_dateString function
group_time : periods,
group_dateString : function ( date, c, $column ) {
// see https://github.com/jquery/globalize/blob/master/doc/api/date/date-formatter.md
var hour = date.getHours(),
min = date.getMinutes(),
format = globalize.dateFormatter({ datetime: "full" })( date ),
time = globalize.dateFormatter({ time: "full" })( date );
// replace special times with time period
if ( hour === 0 && min === 0 ) {
// midnight: this method may not work in all locales!
return format.replace( time, periods.midnight );
} else if ( hour === 12 && min === 0 ) {
// noon: this method may not work in all locales!
return format.replace( time, periods.noon );
}
return format;
}
}
});
});</pre>
</div>
</div>
<p></p>

2
docs/index.html
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@ -473,7 +473,7 @@
<li><span class="label label-info">Beta</span> <a href="example-widget-formatter.html">Formatter widget</a> (<span class="version">v2.19.1</span>).</li>
<li>Grouping rows widget:
<ul>
<li><a href="example-widget-grouping.html">basic</a> (v2.8; <span class="version updated">v2.23.3</span>).</li>
<li><a href="example-widget-grouping.html">basic</a> (v2.8; <span class="version updated">v2.23.6</span>).</li>
<li><a href="example-widget-grouping-filter-childrows.html">Grouping + filter + child rows</a> (<span class="updated version">v2.15.12</span>)</li>
</ul>
</li>

63
js/widgets/widget-grouping.js
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@ -1,4 +1,4 @@
/*! Widget: grouping - updated 9/1/2015 (v2.23.3) *//*
/*! Widget: grouping - updated 10/25/2015 (v2.23.6) *//*
* Requires tablesorter v2.8+ and jQuery 1.7+
* by Rob Garrison
*/
@ -38,20 +38,53 @@
return txt ? (txt + ' ').substring(0, num) : '';
},
date : function(c, $column, txt, part, group){
var wo = c.widgetOptions,
time = new Date(txt || ''),
hours = time.getHours();
return part === 'year' ? time.getFullYear() :
part === 'month' ? wo.group_months[time.getMonth()] :
part === 'monthyear' ? wo.group_months[time.getMonth()] + ' ' + time.getFullYear() :
part === 'day' ? wo.group_months[time.getMonth()] + ' ' + time.getDate() :
part === 'week' ? wo.group_week[time.getDay()] :
part === 'time' ? ('00' + (hours > 12 ? hours - 12 : hours === 0 ? hours + 12 : hours)).slice(-2) + ':' +
('00' + time.getMinutes()).slice(-2) + ' ' + ('00' + wo.group_time[hours >= 12 ? 1 : 0]).slice(-2) :
wo.group_dateString(time);
var year, month,
wo = c.widgetOptions,
time = new Date(txt || '');
// check for valid date
if ( time instanceof Date && isFinite( time ) ) {
year = time.getFullYear();
month = ts.grouping.findMonth( wo, time.getMonth() );
return part === 'year' ? year :
part === 'month' ? month :
part === 'monthyear' ? month + ' ' + year :
part === 'day' ? month + ' ' + time.getDate() :
part === 'week' ? ts.grouping.findWeek( wo, time.getDay() ) :
part === 'time' ? ts.grouping.findTime( wo, time ) :
wo.group_dateString( time, c, $column );
} else {
return wo.group_dateInvalid;
}
}
},
// group date type functions to allow using this widget with Globalize
findMonth : function( wo, month ) {
// CLDR returns an object { 1: "Jan", 2: "Feb", 3: "Mar", ..., 12: "Dec" }
return wo.group_months[ month + ( ( wo.group_months[0] || '' ) === '' ? 1 : 0 ) ];
},
findWeek : function( wo, day ) {
if ( $.isArray( wo.group_week ) ) {
return wo.group_week[ day ];
} else if ( !$.isEmptyObject( wo.group_week ) ) {
// CLDR returns { sun: "Sun", mon: "Mon", tue: "Tue", wed: "Wed", thu: "Thu", ... }
var cldrWeek = [ 'sun', 'mon', 'tue', 'wed', 'thu', 'fri', 'sat' ];
return wo.group_week[ cldrWeek[ day ] ];
}
},
findTime : function( wo, time ) {
var suffix,
h = time.getHours(),
period = h >= 12 ? 1 : 0,
// CLDR returns { am: "AM", pm: "PM", ... }
isObj = wo.group_time.am && wo.group_time.pm,
hours = ( '00' + ( wo.group_time24Hour && h > 12 ? h - 12 : wo.group_time24Hour && h === 0 ? h + 12 : h ) ).slice(-2),
min = ( '00' + time.getMinutes() ).slice(-2);
suffix = wo.group_time[ isObj ? [ 'am', 'pm' ][ period ] : period ];
return hours + ':' + min + ( wo.group_time24Hour ? '' : ' ' + ( suffix || '' ) );
},
update : function(table, c, wo){
if ($.isEmptyObject(c.cache)) { return; }
var rowIndex, tbodyIndex, currentGroup, $rows, groupClass, grouping, norm_rows, saveName, direction,
@ -236,6 +269,12 @@
group_months : [ 'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec' ],
group_week : [ 'Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday' ],
group_time : [ 'AM', 'PM' ],
// use 12 vs 24 hour time
group_time24Hour : false,
// group header text added for invalid dates
group_dateInvalid : 'Invalid Date',
// this function is used when 'group-date' is set to create the date string
// you can just return date, date.toLocaleString(), date.toLocaleDateString() or d.toLocaleTimeString()
// reference: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date#Conversion_getter