From 52ccdf1f0a1cee3f0659ac78e81c79dae152399b Mon Sep 17 00:00:00 2001 From: MDN Date: Wed, 23 Jun 2021 00:34:06 +0000 Subject: [CRON] sync translated content --- .../reference/global_objects/map/clear/index.html | 72 ---------------------- 1 file changed, 72 deletions(-) delete mode 100644 files/ja/web/javascript/reference/global_objects/map/clear/index.html (limited to 'files/ja/web/javascript/reference/global_objects/map/clear/index.html') diff --git a/files/ja/web/javascript/reference/global_objects/map/clear/index.html b/files/ja/web/javascript/reference/global_objects/map/clear/index.html deleted file mode 100644 index 266ab6f9fe..0000000000 --- a/files/ja/web/javascript/reference/global_objects/map/clear/index.html +++ /dev/null @@ -1,72 +0,0 @@ ---- -title: Map.prototype.clear() -slug: Web/JavaScript/Reference/Global_Objects/Map/clear -tags: - - ECMAScript 2015 - - JavaScript - - Map - - Method - - Prototype - - Reference -translation_of: Web/JavaScript/Reference/Global_Objects/Map/clear ---- -
{{JSRef}}
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clear() メソッドは Map オブジェクトからすべての要素を削除します。

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{{EmbedInteractiveExample("pages/js/map-prototype-clear.html")}}
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構文

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myMap.clear();
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返値

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{{jsxref("undefined")}}.

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clear() の使用

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var myMap = new Map();
-myMap.set('bar', 'baz');
-myMap.set(1, 'foo');
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-myMap.size;       // 2
-myMap.has('bar'); // true
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-myMap.clear();
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-myMap.size;       // 0
-myMap.has('bar')  // false
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仕様書

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仕様書
{{SpecName('ESDraft', '#sec-map.prototype.clear', 'Map.prototype.clear')}}
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ブラウザーの互換性

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{{Compat("javascript.builtins.Map.clear")}}

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関連情報

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