proposal-intl-enumeration/intl.html at master · tc39/proposal-intl-enumeration · GitHub

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<emu-clause id="intl-object">
  <h1>The Intl Object</h1>
  <p>
    The Intl object is the <dfn>%Intl%</dfn> intrinsic object and the initial value of the *"Intl"* property of the global object. The Intl object is a single ordinary object.
  </p>

  <p>
    The value of the [[Prototype]] internal slot of the Intl object is the intrinsic object %ObjectPrototype%.
  </p>

  <p>
    The Intl object is not a function object. It does not have a [[Construct]] internal method; it is not possible to use the Intl object as a constructor with the *new* operator. The Intl object does not have a [[Call]] internal method; it is not possible to invoke the Intl object as a function.
  </p>

  <p>
    The Intl object has an internal slot, [[FallbackSymbol]], which is a new %Symbol% in the current realm with the [[Description]] *"IntlLegacyConstructedSymbol"*.
  </p>

  <emu-clause id="sec-constructor-properties-of-the-intl-object">
    <h1>Constructor Properties of the Intl Object</h1>

    <p>
      With the exception of Intl.Locale, each of the following constructors is a <dfn id="service-constructor">service constructor</dfn> that creates objects providing locale-sensitive services.
    </p>

    <emu-clause id="sec-intl.collator-intro">
      <h1>Intl.Collator ( . . . )</h1>
      <p>
        See <emu-xref href="#collator-objects"></emu-xref>.
      </p>
    </emu-clause>

    <emu-clause id="sec-intl.datetimeformat-intro">
      <h1>Intl.DateTimeFormat ( . . . )</h1>
      <p>
        See <emu-xref href="#datetimeformat-objects"></emu-xref>.
      </p>
    </emu-clause>

    <emu-clause id="sec-intl.displaynames-intro">
      <h1>Intl.DisplayNames ( . . . )</h1>
      <p>
        See <emu-xref href="#intl-displaynames-objects"></emu-xref>.
      </p>
    </emu-clause>

    <emu-clause id="sec-intl.listformat-intro">
      <h1>Intl.ListFormat ( . . . )</h1>
      <p>
        See <emu-xref href="#listformat-objects"></emu-xref>.
      </p>
    </emu-clause>

    <emu-clause id="sec-intl.locale-intro">
      <h1>Intl.Locale ( . . . )</h1>
      <p>
        See <emu-xref href="#locale-objects"></emu-xref>.
      </p>
    </emu-clause>

    <emu-clause id="sec-intl.numberformat-intro">
      <h1>Intl.NumberFormat ( . . . )</h1>
      <p>
        See <emu-xref href="#numberformat-objects"></emu-xref>.
      </p>
    </emu-clause>

    <emu-clause id="sec-intl.pluralrules-intro">
      <h1>Intl.PluralRules ( . . . )</h1>
      <p>
        See <emu-xref href="#pluralrules-objects"></emu-xref>.
      </p>
    </emu-clause>

    <emu-clause id="sec-intl.relativetimeformat-intro">
      <h1>Intl.RelativeTimeFormat ( . . . )</h1>
      <p>
        See <emu-xref href="#relativetimeformat-objects"></emu-xref>.
      </p>
    </emu-clause>

    <emu-clause id="sec-intl.segmenter-intro">
      <h1>Intl.Segmenter ( . . . )</h1>
      <p>
        See <emu-xref href="#segmenter-objects"></emu-xref>.
      </p>
    </emu-clause>
  </emu-clause>

  <emu-clause id="sec-function-properties-of-the-intl-object">
    <h1>Function Properties of the Intl Object</h1>

    <emu-clause id="sec-intl.getcanonicallocales">
      <h1>Intl.getCanonicalLocales ( _locales_ )</h1>

      <p>
        When the `getCanonicalLocales` method is called with argument _locales_, the following steps are taken:
      </p>

      <emu-alg>
        1. Let _ll_ be ? CanonicalizeLocaleList(_locales_).
        1. Return CreateArrayFromList(_ll_).
      </emu-alg>
    </emu-clause>

    <ins class="block">
    <emu-clause id="sec-intl.supportedvaluesof">
      <h1>Intl.supportedValuesOf ( _key_ )</h1>

      <p>
      When the `supportedValuesOf` method is called with argument _key_ , the following steps are taken:
      </p>

      <emu-alg>
        1. Let _key_ be ? ToString(_key_).
        1. If _key_ is *"calendar"*, then
          1. Let _list_ be AvailableCanonicalCalendars( ).
        1. Else if _key_ is *"collation"*, then
          1. Let _list_ be AvailableCanonicalCollations( ).
        1. Else if _key_ is *"currency"*, then
          1. Let _list_ be AvailableCanonicalCurrencies( ).
        1. Else if _key_ is *"numberingSystem"*, then
          1. Let _list_ be AvailableCanonicalNumberingSystems( ).
        1. Else if _key_ is *"timeZone"*, then
          1. Let _list_ be AvailableCanonicalTimeZones( ).
        1. Else if _key_ is *"unit"*, then
          1. Let _list_ be AvailableCanonicalUnits( ).
        1. Else,
          1. Throw a *RangeError* exception.
        1. Return CreateArrayFromList( _list_ ).
      </emu-alg>
    </emu-clause>
    </ins>
  </emu-clause>
</emu-clause>