From 33058f2b292b3a581333bdfb21b8f671898c5060 Mon Sep 17 00:00:00 2001 From: Peter Bengtsson Date: Tue, 8 Dec 2020 14:40:17 -0500 Subject: initial commit --- .../global_objects/symbol/search/index.html | 67 ++++++++++++++++++++++ 1 file changed, 67 insertions(+) create mode 100644 files/ja/web/javascript/reference/global_objects/symbol/search/index.html (limited to 'files/ja/web/javascript/reference/global_objects/symbol/search') diff --git a/files/ja/web/javascript/reference/global_objects/symbol/search/index.html b/files/ja/web/javascript/reference/global_objects/symbol/search/index.html new file mode 100644 index 0000000000..83a963dae6 --- /dev/null +++ b/files/ja/web/javascript/reference/global_objects/symbol/search/index.html @@ -0,0 +1,67 @@ +--- +title: Symbol.search +slug: Web/JavaScript/Reference/Global_Objects/Symbol/search +tags: + - ECMAScript 2015 + - JavaScript + - Property + - Symbol +translation_of: Web/JavaScript/Reference/Global_Objects/Symbol/search +--- +
{{JSRef}}
+ +

Symbol.search はウェルノウンシンボルで、正規表現に一致する文字列内の位置を返すメソッドを指定します。この関数は {{jsxref("String.prototype.search()")}} メソッドによって呼び出されます。

+ +

詳しくは、 {{jsxref("RegExp.@@search", "RegExp.prototype[@@search]()")}} と {{jsxref("String.prototype.search()")}} を参照してください。

+ +
{{EmbedInteractiveExample("pages/js/symbol-search.html")}}
+ + + +
{{js_property_attributes(0,0,0)}}
+ +

+ + + +
class caseInsensitiveSearch {
+  constructor(value) {
+    this.value = value.toLowerCase();
+  }
+  [Symbol.search](string) {
+    return string.toLowerCase().indexOf(this.value);
+  }
+}
+
+console.log('foobar'.search(new caseInsensitiveSearch('BaR')));
+// expected output: 3
+ +

仕様書

+ + + + + + + + + + + + +
仕様書
{{SpecName('ESDraft', '#sec-symbol.search', 'Symbol.search')}}
+ +

ブラウザーの互換性

+ + + +

{{Compat("javascript.builtins.Symbol.search")}}

+ +

関連情報

+ + -- cgit v1.2.3-54-g00ecf