isempty.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->

<refentry xml:id="ds-collection.isempty" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
 <refnamediv>
  <refname>Ds\Collection::isEmpty</refname>
  <refpurpose>Returns whether the collection is empty</refpurpose>
 </refnamediv>

 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <modifier>public</modifier> <type>bool</type><methodname>Ds\Collection::isEmpty</methodname>
   <void />
  </methodsynopsis>
  <para>
    Returns whether the collection is empty.
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  &no.function.parameters;
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
    Returns &true; if the collection is empty, &false; otherwise.
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <example>
   <title><function>Ds\Collection::isEmpty</function> example</title>
   <programlisting role="php">
<![CDATA[
<?php
$a = new \Ds\Vector([1, 2, 3]);
$b = new \Ds\Vector();

var_dump($a->isEmpty());
var_dump($b->isEmpty());
?>
]]>
   </programlisting>
   &example.outputs.similar;
   <screen>
<![CDATA[
bool(false)
bool(true)
]]>
   </screen>
  </example>
 </refsect1>


</refentry>

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