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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>
Module: Enumerable
— Documentation by YARD 0.9.20
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<span class="title">Enumerable</span>
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<div id="content"><h1>Module: Enumerable
</h1>
<div class="box_info">
<dl>
<dt>Included in:</dt>
<dd><span class='object_link'><a href="Array.html" title="Array (class)">Array</a></span>, <span class='object_link'><a href="Enumerator.html" title="Enumerator (class)">Enumerator</a></span>, <span class='object_link'><a href="Enumerator/Chain.html" title="Enumerator::Chain (class)">Enumerator::Chain</a></span>, <span class='object_link'><a href="Enumerator/Generator.html" title="Enumerator::Generator (class)">Enumerator::Generator</a></span>, <span class='object_link'><a href="Hash.html" title="Hash (class)">Hash</a></span>, <span class='object_link'><a href="Range.html" title="Range (class)">Range</a></span></dd>
</dl>
<dl>
<dt>Defined in:</dt>
<dd>mrblib/enum.rb<span class="defines">,<br />
src/enum.c,<br /> mrbgems/mruby-enum-ext/mrblib/enum.rb,<br /> mrbgems/mruby-enum-lazy/mrblib/lazy.rb,<br /> mrbgems/mruby-enum-chain/mrblib/chain.rb,<br /> mrbgems/mruby-enumerator/mrblib/enumerator.rb</span>
</dd>
</dl>
</div>
<h2>Overview</h2><div class="docstring">
<div class="discussion">
<p>chain.rb Enumerator::Chain class
See Copyright Notice in mruby.h</p>
</div>
</div>
<div class="tags">
</div>
<h2>
Constant Summary
<small><a href="#" class="constants_summary_toggle">collapse</a></small>
</h2>
<dl class="constants">
<dt id="NONE-constant" class="">NONE =
</dt>
<dd><pre class="code"><span style="color:#036;font-weight:bold">Object</span>.new</pre></dd>
</dl>
<h2>
Class Method Summary
<small><a href="#" class="summary_toggle">collapse</a></small>
</h2>
<ul class="summary">
<li class="public ">
<span class="summary_signature">
<a href="#__update_hash-class_method" title="__update_hash (class method)">.<strong>__update_hash</strong> ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><p>internal method <code>__update_hash(oldhash, index, itemhash)</code>.</p>
</div></span>
</li>
</ul>
<h2>
Instance Method Summary
<small><a href="#" class="summary_toggle">collapse</a></small>
</h2>
<ul class="summary">
<li class="public ">
<span class="summary_signature">
<a href="#all%3F-instance_method" title="#all? (instance method)">#<strong>all?</strong>(pat = NONE, &block) ⇒ Boolean </a>
</span>
<span class="summary_desc"><div class='inline'><table>
<tbody>
<tr>
<td>ISO 15.3.2.2.1 call-seq: enum.all? [{</td>
<td>obj</td>
<td>block } ] -> true or false enum.all?(pattern) -> true or false.</td>
</tr>
</tbody>
</table>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#any%3F-instance_method" title="#any? (instance method)">#<strong>any?</strong>(pat = NONE, &block) ⇒ Boolean </a>
</span>
<span class="summary_desc"><div class='inline'><table>
<tbody>
<tr>
<td>ISO 15.3.2.2.2 call-seq: enum.any? [{</td>
<td>obj</td>
<td>block }] -> true or false enum.any?(pattern) -> true or false.</td>
</tr>
</tbody>
</table>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#chain-instance_method" title="#chain (instance method)">#<strong>chain</strong>(*args) ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#collect-instance_method" title="#collect (instance method)">#<strong>collect</strong>(&block) ⇒ Object </a>
(also: #map)
</span>
<span class="summary_desc"><div class='inline'><p>Call the given block for each element which is yield by +each+.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#count-instance_method" title="#count (instance method)">#<strong>count</strong>(v = NONE, &block) ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><table>
<tbody>
<tr>
<td>call-seq: enum.count -> int enum.count(item) -> int enum.count {</td>
<td>obj</td>
<td>block } -> int.</td>
</tr>
</tbody>
</table>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#cycle-instance_method" title="#cycle (instance method)">#<strong>cycle</strong>(nv = nil, &block) ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><table>
<tbody>
<tr>
<td>call-seq: enum.cycle(n=nil) {</td>
<td>obj</td>
<td>block } -> nil enum.cycle(n=nil) -> an_enumerator.</td>
</tr>
</tbody>
</table>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#detect-instance_method" title="#detect (instance method)">#<strong>detect</strong>(ifnone = nil, &block) ⇒ Object </a>
(also: #find)
</span>
<span class="summary_desc"><div class='inline'><p>Return the first element for which value from the block is true.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#drop-instance_method" title="#drop (instance method)">#<strong>drop</strong>(n) ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><p>call-seq: enum.drop(n) -> array.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#drop_while-instance_method" title="#drop_while (instance method)">#<strong>drop_while</strong>(&block) ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><table>
<tbody>
<tr>
<td>call-seq: enum.drop_while {</td>
<td>arr</td>
<td>block } -> array enum.drop_while -> an_enumerator.</td>
</tr>
</tbody>
</table>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#each_cons-instance_method" title="#each_cons (instance method)">#<strong>each_cons</strong>(n, &block) ⇒ nil </a>
</span>
<span class="summary_desc"><div class='inline'><p>Iterates the given block for each array of consecutive <n> elements.</n></p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#each_slice-instance_method" title="#each_slice (instance method)">#<strong>each_slice</strong>(n, &block) ⇒ nil </a>
</span>
<span class="summary_desc"><div class='inline'><p>Iterates the given block for each slice of <n> elements.</n></p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#each_with_index-instance_method" title="#each_with_index (instance method)">#<strong>each_with_index</strong>(&block) ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><p>Call the given block for each element which is yield by +each+.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#each_with_object-instance_method" title="#each_with_object (instance method)">#<strong>each_with_object</strong>(obj, &block) ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><table>
<tbody>
<tr>
<td>call-seq: enum.each_with_object(obj) {</td>
<td>(*args), memo_obj</td>
<td>… } -> obj enum.each_with_object(obj) -> an_enumerator.</td>
</tr>
</tbody>
</table>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#entries-instance_method" title="#entries (instance method)">#<strong>entries</strong> ⇒ Object </a>
(also: #to_a)
</span>
<span class="summary_desc"><div class='inline'><p>Return an array of all elements which are yield by +each+.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#filter_map-instance_method" title="#filter_map (instance method)">#<strong>filter_map</strong>(&blk) ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#find_all-instance_method" title="#find_all (instance method)">#<strong>find_all</strong>(&block) ⇒ Object </a>
(also: #select)
</span>
<span class="summary_desc"><div class='inline'><p>Call the given block for each element which is yield by +each+.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#find_index-instance_method" title="#find_index (instance method)">#<strong>find_index</strong>(val = NONE, &block) ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><table>
<tbody>
<tr>
<td>call-seq: enum.find_index(value) -> int or nil enum.find_index {</td>
<td>obj</td>
<td>block } -> int or nil enum.find_index -> an_enumerator.</td>
</tr>
</tbody>
</table>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#first-instance_method" title="#first (instance method)">#<strong>first</strong>(*args) ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><p>call-seq: enum.first -> obj or nil enum.first(n) -> an_array.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#flat_map-instance_method" title="#flat_map (instance method)">#<strong>flat_map</strong>(&block) ⇒ Object </a>
(also: #collect_concat)
</span>
<span class="summary_desc"><div class='inline'><table>
<tbody>
<tr>
<td>call-seq: enum.flat_map {</td>
<td>obj</td>
<td>block } -> array enum.collect_concat {</td>
<td>obj</td>
<td>block } -> array enum.flat_map -> an_enumerator enum.collect_concat -> an_enumerator.</td>
</tr>
</tbody>
</table>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#grep-instance_method" title="#grep (instance method)">#<strong>grep</strong>(pattern, &block) ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><p>Call the given block for each element which is yield by +each+ and which return value was true when invoking === with +pattern+.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#group_by-instance_method" title="#group_by (instance method)">#<strong>group_by</strong>(&block) ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><table>
<tbody>
<tr>
<td>call-seq: enum.group_by {</td>
<td>obj</td>
<td>block } -> a_hash enum.group_by -> an_enumerator.</td>
</tr>
</tbody>
</table>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#hash-instance_method" title="#hash (instance method)">#<strong>hash</strong> ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><p>redefine #hash 15.3.1.3.15.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#include%3F-instance_method" title="#include? (instance method)">#<strong>include?</strong>(obj) ⇒ Boolean </a>
(also: #member?)
</span>
<span class="summary_desc"><div class='inline'><p>Return true if at least one element which is yield by +each+ returns a true value by invoking == with +obj+.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#inject-instance_method" title="#inject (instance method)">#<strong>inject</strong>(*args, &block) ⇒ Object </a>
(also: #reduce)
</span>
<span class="summary_desc"><div class='inline'><p>Call the given block for each element which is yield by +each+.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#lazy-instance_method" title="#lazy (instance method)">#<strong>lazy</strong> ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><p>= Enumerable#lazy implementation.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#max-instance_method" title="#max (instance method)">#<strong>max</strong>(&block) ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><p>Return the maximum value of all elements yield by +each+.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#max_by-instance_method" title="#max_by (instance method)">#<strong>max_by</strong>(&block) ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><table>
<tbody>
<tr>
<td>call-seq: enum.max_by {</td>
<td>obj</td>
<td>block } -> obj enum.max_by -> an_enumerator.</td>
</tr>
</tbody>
</table>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#min-instance_method" title="#min (instance method)">#<strong>min</strong>(&block) ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><p>Return the minimum value of all elements yield by +each+.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#min_by-instance_method" title="#min_by (instance method)">#<strong>min_by</strong>(&block) ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><table>
<tbody>
<tr>
<td>call-seq: enum.min_by {</td>
<td>obj</td>
<td>block } -> obj enum.min_by -> an_enumerator.</td>
</tr>
</tbody>
</table>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#minmax-instance_method" title="#minmax (instance method)">#<strong>minmax</strong>(&block) ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><table>
<tbody>
<tr>
<td>call-seq: enum.minmax -> [min, max] enum.minmax {</td>
<td>a, b</td>
<td>block } -> [min, max].</td>
</tr>
</tbody>
</table>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#minmax_by-instance_method" title="#minmax_by (instance method)">#<strong>minmax_by</strong>(&block) ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><table>
<tbody>
<tr>
<td>call-seq: enum.minmax_by {</td>
<td>obj</td>
<td>block } -> [min, max] enum.minmax_by -> an_enumerator.</td>
</tr>
</tbody>
</table>