From 33058f2b292b3a581333bdfb21b8f671898c5060 Mon Sep 17 00:00:00 2001
From: Peter Bengtsson <mail@peterbe.com>
Date: Tue, 8 Dec 2020 14:40:17 -0500
Subject: initial commit

---
 files/ja/web/api/urlsearchparams/has/index.html | 66 +++++++++++++++++++++++++
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+---
+title: URLSearchParams.has()
+slug: Web/API/URLSearchParams/has
+tags:
+  - API
+  - Method
+  - URL API
+  - URLSearchParams
+  - has
+translation_of: Web/API/URLSearchParams/has
+---
+<p>{{ApiRef("URL API")}}</p>
+
+<p><span class="seoSummary">{{domxref("URLSearchParams")}} インターフェイスの <strong><code>has()</code></strong> メソッドは、指定された名前のパラメーターが存在するかどうかを示す {{jsxref("Boolean")}} を返します。</span></p>
+
+<p>{{availableinworkers}}</p>
+
+<h2 id="Syntax" name="Syntax">構文</h2>
+
+<pre class="syntaxbox">var <em>hasName</em> = URLSearchParams.has(<em>name</em>)</pre>
+
+<h3 id="Parameters" name="Parameters">パラメーター</h3>
+
+<dl>
+ <dt>name</dt>
+ <dd>検索するパラメーターの名前。</dd>
+</dl>
+
+<h3 id="Return_value" name="Return_value">戻り値</h3>
+
+<p>{{jsxref("Boolean")}}。</p>
+
+<h2 id="Examples" name="Examples">例</h2>
+
+<pre class="brush: js">let url = new URL('https://example.com?foo=1&amp;bar=2');
+let params = new URLSearchParams(url.search.slice(1));
+
+params.has('bar') === true; // true
+</pre>
+
+<h2 id="Specifications" name="Specifications">仕様</h2>
+
+<table class="standard-table">
+ <thead>
+  <tr>
+   <th scope="col">仕様</th>
+   <th scope="col">状態</th>
+   <th scope="col">コメント</th>
+  </tr>
+ </thead>
+ <tbody>
+  <tr>
+   <td>{{SpecName('URL', '#dom-urlsearchparams-has', "has()")}}</td>
+   <td>{{Spec2('URL')}}</td>
+   <td>初期定義</td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="Browser_compatibility" name="Browser_compatibility">ブラウザーの互換性</h2>
+
+<div>
+
+
+<p>{{Compat("api.URLSearchParams.has")}}</p>
+</div>
-- 
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