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/replace/index.html | 67 ++++++++++++++++++++++ 1 file changed, 67 insertions(+) create mode 100644 files/ja/web/javascript/reference/global_objects/symbol/replace/index.html (limited to 'files/ja/web/javascript/reference/global_objects/symbol/replace/index.html') diff --git a/files/ja/web/javascript/reference/global_objects/symbol/replace/index.html b/files/ja/web/javascript/reference/global_objects/symbol/replace/index.html new file mode 100644 index 0000000000..6e1579bd8a --- /dev/null +++ b/files/ja/web/javascript/reference/global_objects/symbol/replace/index.html @@ -0,0 +1,67 @@ +--- +title: Symbol.replace +slug: Web/JavaScript/Reference/Global_Objects/Symbol/replace +tags: + - ECMAScript 2015 + - JavaScript + - Property + - Symbol +translation_of: Web/JavaScript/Reference/Global_Objects/Symbol/replace +--- +
{{JSRef}}
+ +

Symbol.replace ウェルノウンシンボルは、文字列の一致した部分を置き換えるメソッドを指定します。この関数は {{jsxref("String.prototype.replace()")}} メソッドから呼び出されます。

+ +

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

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

+ +

Symbol.replace の使用

+ +
class CustomReplacer {
+  constructor(value) {
+    this.value = value;
+  }
+  [Symbol.replace](string) {
+    return string.replace(this.value, '#!@?');
+  }
+}
+
+console.log('football'.replace(new CustomReplacer('foo')));
+// expected output: "#!@?tball"
+ +

仕様書

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

ブラウザーの互換性

+ + + +

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

+ +

関連情報

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