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module-extdatetimeformat.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>JSDoc: Class: module:extdatetimeformat</title>
<script src="scripts/prettify/prettify.js"> </script>
<script src="scripts/prettify/lang-css.js"> </script>
<!--[if lt IE 9]>
<script src="//html5shiv.googlecode.com/svn/trunk/html5.js"></script>
<![endif]-->
<link type="text/css" rel="stylesheet" href="styles/prettify-tomorrow.css">
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</head>
<body>
<div id="main">
<h1 class="page-title">Class: module:extdatetimeformat</h1>
<section>
<header>
<h2><span class="attribs"><span class="type-signature"></span></span>module:extdatetimeformat<span class="signature">(locale<span class="signature-attributes">opt</span>, options<span class="signature-attributes">opt</span>, calendar<span class="signature-attributes">opt</span>)</span><span class="type-signature"></span></h2>
<div class="class-description">ExtDateTimeFormat (default exported class): Extension of Intl.DateTimeFormat object. Handle built-in or custom calendars.Handle Private Locale Data Repositories, with same structure as Unicode's CLDR.Handle the eraDisplay option.Handle "2-digit" and "numeric" options value in a different way.Handle the intercalary months as coded in Unicode's CLDR.Enable language-sensitive intercalary month mark.Requires module:extdate.js, which could be substituted by Temporal.</div>
</header>
<article>
<div class="container-overview">
<h2>Constructor</h2>
<h4 class="name" id="module:extdatetimeformat"><span class="type-signature"></span>new module:extdatetimeformat<span class="signature">(locale<span class="signature-attributes">opt</span>, options<span class="signature-attributes">opt</span>, calendar<span class="signature-attributes">opt</span>)</span><span class="type-signature"></span></h4>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th>Attributes</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>locale</code></td>
<td class="type">
<span class="param-type">string</span>
</td>
<td class="attributes">
<optional><br>
</td>
<td class="description last">as for Intl.DateTimeFormat.</td>
</tr>
<tr>
<td class="name"><code>options</code></td>
<td class="type">
<span class="param-type">Object</span>
</td>
<td class="attributes">
<optional><br>
</td>
<td class="description last">same as for Intl.DateTimeFormat + option eraDisplay : ("never"/"always"/"auto"), default to "auto": should era be displayed ? if "auto", era is displayed if year is displayed and era of now is not equal to era of formatted date.if era option is not specified, "short" is assumed whenever necessary. Note: date and time fields option values "2-digit" and "numeric" yield different effects, unlike legacy Intl.DateTimeFormat.</td>
</tr>
<tr>
<td class="name"><code>calendar</code></td>
<td class="type">
<span class="param-type">Object</span>
</td>
<td class="attributes">
<optional><br>
</td>
<td class="description last">a calendar used to format the date. If this parameter is not specified, the calendar resolved with locale and options will be used. If specified as a built-in calendar string, this calendar supersedes the one resolved with locale and options. If specified as a custom calendar and if a Private Locale Data Repository (PLDR) is given, this will be used for calendar's entity names. If no PLDR is provided, the calendar.canvas field refers to the built-in calendar to use for entity names.</td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-version">Version:</dt>
<dd class="tag-version"><ul class="dummy"><li>M2022-08-06</li></ul></dd>
<dt class="tag-author">Author:</dt>
<dd class="tag-author">
<ul>
<li>Louis A. de Fouquières https://github.com/Louis-Aime</li>
</ul>
</dd>
<dt class="tag-license">License:</dt>
<dd class="tag-license"><ul class="dummy"><li>MIT 2016-2022</li></ul></dd>
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="extdatetimeformat.js.html">extdatetimeformat.js</a>, <a href="extdatetimeformat.js.html#line59">line 59</a>
</li></ul></dd>
<dt class="tag-see">See:</dt>
<dd class="tag-see">
<ul>
<li><a href="customcalendarmodel.js.html">customcalendarmodel.js</a></li>
<li>customcalendarmodel.js for the custom calendar model.</li>
</ul>
</dd>
</dl>
<h5>Requires:</h5>
<ul>
<li>module:extdate.js</li>
</ul>
</div>
<h3 class="subsection-title">Extends</h3>
<ul>
<li>Intl.DateTimeFormat.</li>
</ul>
<h3 class="subsection-title">Requires</h3>
<ul>
<li>module:extdate.js</li>
</ul>
<h3 class="subsection-title">Methods</h3>
<h4 class="name" id="format"><span class="type-signature"></span>format<span class="signature">(date)</span><span class="type-signature"> → {string}</span></h4>
<div class="description">
format, from computed parts, using extended FormatToParts.
</div>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>date</code></td>
<td class="type">
<span class="param-type">Object</span>
</td>
<td class="description last">the date to display.</td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="extdatetimeformat.js.html">extdatetimeformat.js</a>, <a href="extdatetimeformat.js.html#line500">line 500</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
the string to display.
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">string</span>
</dd>
</dl>
<h4 class="name" id="formatToParts"><span class="type-signature"></span>formatToParts<span class="signature">(aDate)</span><span class="type-signature"> → {Array.<Object>}</span></h4>
<div class="description">
Extended FormatToParts method.The custom calendar is used for display. The eraDisplay option controls whether the era field is displayed.Field asked as "numeric" are not changed to "2-digit".In left-to-right languages, the "numeric" option fot time fields implies the " h ", " min " and " s " marks instead of ":".
</div>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>aDate</code></td>
<td class="type">
<span class="param-type">Object</span>
</td>
<td class="description last">the date to be displayed.</td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="extdatetimeformat.js.html">extdatetimeformat.js</a>, <a href="extdatetimeformat.js.html#line327">line 327</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
like the Intl.DateTimeFormat, but enhanced.
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">Array.<Object></span>
</dd>
</dl>
<h4 class="name" id="resolvedOptions"><span class="type-signature"></span>resolvedOptions<span class="signature">()</span><span class="type-signature"> → {Object}</span></h4>
<div class="description">
the resolved options for this object, that slightly differ from those of Intl.DateTimeFormat.
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="extdatetimeformat.js.html">extdatetimeformat.js</a>, <a href="extdatetimeformat.js.html#line184">line 184</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
the options revised to reflect what will be provided. eraDisplay is also resolved. hour12 is never returned.
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">Object</span>
</dd>
</dl>
<h4 class="name" id=".dateFieldNames"><span class="type-signature">(static) </span>dateFieldNames<span class="signature">()</span><span class="type-signature"> → {Array.<string>}</span></h4>
<div class="description">
The names of the fields necessary to fully characterise a date in any calendar.
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="extdatetimeformat.js.html">extdatetimeformat.js</a>, <a href="extdatetimeformat.js.html#line174">line 174</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
the names of the minimum fields necessary for an unambiguous date.
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">Array.<string></span>
</dd>
</dl>
<h4 class="name" id=".weekdayKey"><span class="type-signature">(static) </span>weekdayKey<span class="signature">(index)</span><span class="type-signature"> → {string}</span></h4>
<div class="description">
The universal keys for the weekdays of the standard 7-days week, used in CLDR and to be used with a Private Locale Data Repository.
</div>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>index</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last">0 to 6.</td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="extdatetimeformat.js.html">extdatetimeformat.js</a>, <a href="extdatetimeformat.js.html#line180">line 180</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
a three-character string for the weekday.
</div>
<dl>
<dt>
Type
</dt>
<dd>