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﻿<!DOCTYPE html><!--[if IE]><![endif]--><html>    <head>    <meta charset="utf-8">    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">    <title>Class EnumerableExtensions   </title>    <meta name="viewport" content="width=device-width">    <meta name="title" content="Class EnumerableExtensions   ">    <meta name="generator" content="docfx 2.59.4.0">        <link rel="shortcut icon" href="../favicon.ico">    <link rel="stylesheet" href="../styles/docfx.vendor.css">    <link rel="stylesheet" href="../styles/docfx.css">    <link rel="stylesheet" href="../styles/main.css">    <link rel="stylesheet" href="../styles/fix.css">    <link href="https://fonts.googleapis.com/css?family=Roboto" rel="stylesheet">     <meta property="docfx:navrel" content="../toc.html">    <meta property="docfx:tocrel" content="toc.html">        <meta property="docfx:rel" content="../">    <meta property="docfx:newtab" content="true">  </head>  <body data-spy="scroll" data-target="#affix" 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href="https://learn.microsoft.com/dotnet/api/system.object">Object</a></div>    <div class="level1"><span class="xref">EnumerableExtensions</span></div>  </div>  <div class="inheritedMembers">    <h5>Inherited Members</h5>    <div>      <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.tostring#system-object-tostring">Object.ToString()</a>    </div>    <div>      <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.equals#system-object-equals(system-object)">Object.Equals(Object)</a>    </div>    <div>      <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.equals#system-object-equals(system-object-system-object)">Object.Equals(Object, Object)</a>    </div>    <div>      <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.referenceequals#system-object-referenceequals(system-object-system-object)">Object.ReferenceEquals(Object, Object)</a>    </div>    <div>      <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.gethashcode#system-object-gethashcode">Object.GetHashCode()</a>    </div>    <div>      <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.gettype#system-object-gettype">Object.GetType()</a>    </div>    <div>      <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.memberwiseclone#system-object-memberwiseclone">Object.MemberwiseClone()</a>    </div>  </div>  <h6><strong>Namespace</strong>: <a class="xref" href="IPA.Utilities.html">IPA.Utilities</a></h6>  <h6><strong>Assembly</strong>: IPA.Loader.dll</h6>  <h5 id="IPA_Utilities_EnumerableExtensions_syntax">Syntax</h5>  <div class="codewrapper">    <pre><code class="lang-csharp hljs">public static class EnumerableExtensions</code></pre>  </div>  <h3 id="methods">Methods  </h3>  <span class="small pull-right mobile-hide">    <span class="divider">|</span>    <a href="https://github.com/nike4613/BeatSaber-IPA-Reloaded/new/master/docs/override/new?filename=IPA_Utilities_EnumerableExtensions_NonNull__1_System_Collections_Generic_IEnumerable___0__.md&amp;value=---%0Auid%3A%20IPA.Utilities.EnumerableExtensions.NonNull%60%601(System.Collections.Generic.IEnumerable%7B%60%600%7D)%0Asummary%3A%20'*You%20can%20override%20summary%20for%20the%20API%20here%20using%20*MARKDOWN*%20syntax'%0A---%0A%0A*Please%20type%20below%20more%20information%20about%20this%20API%3A*%0A%0A">Improve this Doc</a>  </span>  <span class="small pull-right mobile-hide">    <a href="https://github.com/nike4613/BeatSaber-IPA-Reloaded/blob/ab1e43219279fa6d7f01aad39366a5d35ad44b5a/IPA.Loader/Utilities/EnumerableExtensions.cs/#L176">View Source</a>  </span>  <a id="IPA_Utilities_EnumerableExtensions_NonNull_" data-uid="IPA.Utilities.EnumerableExtensions.NonNull*"></a>  <h4 id="IPA_Utilities_EnumerableExtensions_NonNull__1_System_Collections_Generic_IEnumerable___0__" data-uid="IPA.Utilities.EnumerableExtensions.NonNull``1(System.Collections.Generic.IEnumerable{``0})">NonNull&lt;T&gt;(IEnumerable&lt;T&gt;)</h4>  <div class="markdown level1 summary"><p>LINQ-style extension method that filters <span class="xref">null</span> elements out of an enumeration.</p></div>  <div class="markdown level1 conceptual"></div>  <h5 class="decalaration">Declaration</h5>  <div class="codewrapper">    <pre><code class="lang-csharp hljs">public static IEnumerable&lt;T&gt; NonNull&lt;T&gt;(this IEnumerable&lt;T&gt; self)    where T : class</code></pre>  </div>  <h5 class="parameters">Parameters</h5>  <table class="table table-bordered table-striped table-condensed">    <thead>      <tr>        <th>Type</th>        <th>Name</th>        <th>Description</th>      </tr>    </thead>    <tbody>      <tr>        <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.collections.generic.ienumerable-1">IEnumerable</a>&lt;T&gt;</td>        <td><span class="parametername">self</span></td>        <td><p>the enumeration to filter</p></td>      </tr>    </tbody>  </table>  <h5 class="returns">Returns</h5>  <table class="table table-bordered table-striped table-condensed">    <thead>      <tr>        <th>Type</th>        <th>Description</th>      </tr>    </thead>    <tbody>      <tr>        <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.collections.generic.ienumerable-1">IEnumerable</a>&lt;T&gt;</td>        <td><p>a filtered enumerable</p></td>      </tr>    </tbody>  </table>  <h5 class="typeParameters">Type Parameters</h5>  <table class="table table-bordered table-striped table-condensed">    <thead>      <tr>        <th>Name</th>        <th>Description</th>      </tr>    </thead>    <tbody>      <tr>        <td><span class="parametername">T</span></td>        <td><p>the type of the enumeration</p></td>      </tr>    </tbody>  </table>  <span class="small pull-right mobile-hide">    <span class="divider">|</span>    <a href="https://github.com/nike4613/BeatSaber-IPA-Reloaded/new/master/docs/override/new?filename=IPA_Utilities_EnumerableExtensions_NonNull__1_System_Collections_Generic_IEnumerable_System_Nullable___0___.md&amp;value=---%0Auid%3A%20IPA.Utilities.EnumerableExtensions.NonNull%60%601(System.Collections.Generic.IEnumerable%7BSystem.Nullable%7B%60%600%7D%7D)%0Asummary%3A%20'*You%20can%20override%20summary%20for%20the%20API%20here%20using%20*MARKDOWN*%20syntax'%0A---%0A%0A*Please%20type%20below%20more%20information%20about%20this%20API%3A*%0A%0A">Improve this Doc</a>  </span>  <span class="small pull-right mobile-hide">    <a href="https://github.com/nike4613/BeatSaber-IPA-Reloaded/blob/ab1e43219279fa6d7f01aad39366a5d35ad44b5a/IPA.Loader/Utilities/EnumerableExtensions.cs/#L196">View Source</a>  </span>  <a id="IPA_Utilities_EnumerableExtensions_NonNull_" data-uid="IPA.Utilities.EnumerableExtensions.NonNull*"></a>  <h4 id="IPA_Utilities_EnumerableExtensions_NonNull__1_System_Collections_Generic_IEnumerable_System_Nullable___0___" data-uid="IPA.Utilities.EnumerableExtensions.NonNull``1(System.Collections.Generic.IEnumerable{System.Nullable{``0}})">NonNull&lt;T&gt;(IEnumerable&lt;Nullable&lt;T&gt;&gt;)</h4>  <div class="markdown level1 summary"><p>LINQ-style extension method that filters <span class="xref">null</span> elements from an enumeration of nullable types.</p></div>  <div class="markdown level1 conceptual"></div>  <h5 class="decalaration">Declaration</h5>  <div class="codewrapper">    <pre><code class="lang-csharp hljs">public static IEnumerable&lt;T&gt; NonNull&lt;T&gt;(this IEnumerable&lt;T?&gt; self)    where T : struct</code></pre>  </div>  <h5 class="parameters">Parameters</h5>  <table class="table table-bordered table-striped table-condensed">    <thead>      <tr>        <th>Type</th>        <th>Name</th>        <th>Description</th>      </tr>    </thead>    <tbody>      <tr>        <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.collections.generic.ienumerable-1">IEnumerable</a>&lt;<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.nullable-1">Nullable</a>&lt;T&gt;&gt;</td>        <td><span class="parametername">self</span></td>        <td><p>the enumeration to filter</p></td>      </tr>    </tbody>  </table>  <h5 class="returns">Returns</h5>  <table class="table table-bordered table-striped table-condensed">    <thead>      <tr>        <th>Type</th>        <th>Description</th>      </tr>    </thead>    <tbody>      <tr>        <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.collections.generic.ienumerable-1">IEnumerable</a>&lt;T&gt;</td>        <td><p>a filtered enumerable</p></td>      </tr>    </tbody>  </table>  <h5 class="typeParameters">Type Parameters</h5>  <table class="table table-bordered table-striped table-condensed">    <thead>      <tr>        <th>Name</th>        <th>Description</th>      </tr>    </thead>    <tbody>      <tr>        <td><span class="parametername">T</span></td>        <td><p>the underlying type of the nullable enumeration</p></td>      </tr>    </tbody>  </table>  <span class="small pull-right mobile-hide">    <span class="divider">|</span>    <a href="https://github.com/nike4613/BeatSaber-IPA-Reloaded/new/master/docs/override/new?filename=IPA_Utilities_EnumerableExtensions_NonNull__2_System_Collections_Generic_IEnumerable___0__System_Func___0___1__.md&amp;value=---%0Auid%3A%20IPA.Utilities.EnumerableExtensions.NonNull%60%602(System.Collections.Generic.IEnumerable%7B%60%600%7D%2CSystem.Func%7B%60%600%2C%60%601%7D)%0Asummary%3A%20'*You%20can%20override%20summary%20for%20the%20API%20here%20using%20*MARKDOWN*%20syntax'%0A---%0A%0A*Please%20type%20below%20more%20information%20about%20this%20API%3A*%0A%0A">Improve this Doc</a>  </span>  <span class="small pull-right mobile-hide">    <a href="https://github.com/nike4613/BeatSaber-IPA-Reloaded/blob/ab1e43219279fa6d7f01aad39366a5d35ad44b5a/IPA.Loader/Utilities/EnumerableExtensions.cs/#L187">View Source</a>  </span>  <a id="IPA_Utilities_EnumerableExtensions_NonNull_" data-uid="IPA.Utilities.EnumerableExtensions.NonNull*"></a>  <h4 id="IPA_Utilities_EnumerableExtensions_NonNull__2_System_Collections_Generic_IEnumerable___0__System_Func___0___1__" data-uid="IPA.Utilities.EnumerableExtensions.NonNull``2(System.Collections.Generic.IEnumerable{``0},System.Func{``0,``1})">NonNull&lt;T, U&gt;(IEnumerable&lt;T&gt;, Func&lt;T, U&gt;)</h4>  <div class="markdown level1 summary"><p>LINQ-style extension method that filters <span class="xref">null</span> elements out of an enumeration based on a converter.</p></div>  <div class="markdown level1 conceptual"></div>  <h5 class="decalaration">Declaration</h5>  <div class="codewrapper">    <pre><code class="lang-csharp hljs">public static IEnumerable&lt;T&gt; NonNull&lt;T, U&gt;(this IEnumerable&lt;T&gt; self, Func&lt;T, U&gt; pred)    where U : class</code></pre>  </div>  <h5 class="parameters">Parameters</h5>  <table class="table table-bordered table-striped table-condensed">    <thead>      <tr>        <th>Type</th>        <th>Name</th>        <th>Description</th>      </tr>    </thead>    <tbody>      <tr>        <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.collections.generic.ienumerable-1">IEnumerable</a>&lt;T&gt;</td>        <td><span class="parametername">self</span></td>        <td><p>the enumeration to filter</p></td>      </tr>      <tr>        <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.func-2">Func</a>&lt;T, U&gt;</td>        <td><span class="parametername">pred</span></td>        <td><p>the predicate to select for filtering</p></td>      </tr>    </tbody>  </table>  <h5 class="returns">Returns</h5>  <table class="table table-bordered table-striped table-condensed">    <thead>      <tr>        <th>Type</th>        <th>Description</th>      </tr>    </thead>    <tbody>      <tr>        <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.collections.generic.ienumerable-1">IEnumerable</a>&lt;T&gt;</td>        <td><p>a filtered enumerable</p></td>      </tr>    </tbody>  </table>  <h5 class="typeParameters">Type Parameters</h5>  <table class="table table-bordered table-striped table-condensed">    <thead>      <tr>        <th>Name</th>        <th>Description</th>      </tr>    </thead>    <tbody>      <tr>        <td><span class="parametername">T</span></td>        <td><p>the type of the enumeration</p></td>      </tr>      <tr>        <td><span class="parametername">U</span></td>        <td><p>the type to compare to null</p></td>      </tr>    </tbody>  </table>  <span class="small pull-right mobile-hide">    <span class="divider">|</span>    <a href="https://github.com/nike4613/BeatSaber-IPA-Reloaded/new/master/docs/override/new?filename=IPA_Utilities_EnumerableExtensions_NonNull__2_System_Collections_Generic_IEnumerable___0__System_Func___0_System_Nullable___1___.md&amp;value=---%0Auid%3A%20IPA.Utilities.EnumerableExtensions.NonNull%60%602(System.Collections.Generic.IEnumerable%7B%60%600%7D%2CSystem.Func%7B%60%600%2CSystem.Nullable%7B%60%601%7D%7D)%0Asummary%3A%20'*You%20can%20override%20summary%20for%20the%20API%20here%20using%20*MARKDOWN*%20syntax'%0A---%0A%0A*Please%20type%20below%20more%20information%20about%20this%20API%3A*%0A%0A">Improve this Doc</a>  </span>  <span class="small pull-right mobile-hide">    <a href="https://github.com/nike4613/BeatSaber-IPA-Reloaded/blob/ab1e43219279fa6d7f01aad39366a5d35ad44b5a/IPA.Loader/Utilities/EnumerableExtensions.cs/#L207">View Source</a>  </span>  <a id="IPA_Utilities_EnumerableExtensions_NonNull_" data-uid="IPA.Utilities.EnumerableExtensions.NonNull*"></a>  <h4 id="IPA_Utilities_EnumerableExtensions_NonNull__2_System_Collections_Generic_IEnumerable___0__System_Func___0_System_Nullable___1___" data-uid="IPA.Utilities.EnumerableExtensions.NonNull``2(System.Collections.Generic.IEnumerable{``0},System.Func{``0,System.Nullable{``1}})">NonNull&lt;T, U&gt;(IEnumerable&lt;T&gt;, Func&lt;T, Nullable&lt;U&gt;&gt;)</h4>  <div class="markdown level1 summary"><p>LINQ-style extension method that filters <span class="xref">null</span> elements out of an enumeration based on a converter to a nullable type.</p></div>  <div class="markdown level1 conceptual"></div>  <h5 class="decalaration">Declaration</h5>  <div class="codewrapper">    <pre><code class="lang-csharp hljs">public static IEnumerable&lt;T&gt; NonNull&lt;T, U&gt;(this IEnumerable&lt;T&gt; self, Func&lt;T, U?&gt; pred)    where U : struct</code></pre>  </div>  <h5 class="parameters">Parameters</h5>  <table class="table table-bordered table-striped table-condensed">    <thead>      <tr>        <th>Type</th>        <th>Name</th>        <th>Description</th>      </tr>    </thead>    <tbody>      <tr>        <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.collections.generic.ienumerable-1">IEnumerable</a>&lt;T&gt;</td>        <td><span class="parametername">self</span></td>        <td><p>the enumeration to filter</p></td>      </tr>      <tr>        <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.func-2">Func</a>&lt;T, <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.nullable-1">Nullable</a>&lt;U&gt;&gt;</td>        <td><span class="parametername">pred</span></td>        <td><p>the predicate to select for filtering</p></td>      </tr>    </tbody>  </table>  <h5 class="returns">Returns</h5>  <table class="table table-bordered table-striped table-condensed">    <thead>      <tr>        <th>Type</th>        <th>Description</th>      </tr>    </thead>    <tbody>      <tr>        <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.collections.generic.ienumerable-1">IEnumerable</a>&lt;T&gt;</td>        <td><p>a filtered enumerable</p></td>      </tr>    </tbody>  </table>  <h5 class="typeParameters">Type Parameters</h5>  <table class="table table-bordered table-striped table-condensed">    <thead>      <tr>        <th>Name</th>        <th>Description</th>      </tr>    </thead>    <tbody>      <tr>        <td><span class="parametername">T</span></td>        <td><p>the type of the enumeration</p></td>      </tr>      <tr>        <td><span class="parametername">U</span></td>        <td><p>the type of the predicate&apos;s resulting nullable</p></td>      </tr>    </tbody>  </table></article>          </div>                    <div class="hidden-sm col-md-2" role="complementary">            <div class="sideaffix">              <div class="contribution">                <ul class="nav">                  <li>                    <a 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