From a55b575e8089ee6cab7c5c262a7e6db55d0e34d6 Mon Sep 17 00:00:00 2001 From: Florian Merz Date: Thu, 11 Feb 2021 14:46:50 +0100 Subject: unslug es: move --- .../global_objects/symbol/hasinstance/index.html | 105 +++++++++++++++++++++ 1 file changed, 105 insertions(+) create mode 100644 files/es/web/javascript/reference/global_objects/symbol/hasinstance/index.html (limited to 'files/es/web/javascript/reference/global_objects/symbol/hasinstance/index.html') diff --git a/files/es/web/javascript/reference/global_objects/symbol/hasinstance/index.html b/files/es/web/javascript/reference/global_objects/symbol/hasinstance/index.html new file mode 100644 index 0000000000..9149aeda00 --- /dev/null +++ b/files/es/web/javascript/reference/global_objects/symbol/hasinstance/index.html @@ -0,0 +1,105 @@ +--- +title: Symbol.hasInstance +slug: Web/JavaScript/Referencia/Objetos_globales/Symbol/hasInstance +translation_of: Web/JavaScript/Reference/Global_Objects/Symbol/hasInstance +--- +
{{JSRef}}
+ +

El bien conocido símbolo Symbol.hasInstance es usado para determinar si un constructor reconoce un objeto como su instancia. El comportamiento del operador {{jsxref("Operators/instanceof", "instanceof")}} puede ser personalizado con este símbolo.

+ +
{{js_property_attributes(0,0,0)}}
+ +

Ejemplos

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Usted puede implementar un comportamiento personalizado para el operador instanceof tal que así:

+ +
class MyArray {
+  static [Symbol.hasInstance](instance) {
+    return Array.isArray(instance);
+  }
+}
+console.log([] instanceof MyArray); // true
+ +

Specifications

+ + + + + + + + + + + + + + + + + + + +
SpecificationStatusComment
{{SpecName('ES2015', '#sec-symbol.hasinstance', 'Symbol.hasInstance')}}{{Spec2('ES2015')}}Initial definition.
{{SpecName('ESDraft', '#sec-symbol.hasinstance', 'Symbol.hasInstance')}}{{Spec2('ESDraft')}} 
+ +

Browser compatibility

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{{CompatibilityTable}}

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FeatureChromeEdgeFirefox (Gecko)Internet ExplorerOperaSafari
Basic support{{CompatChrome(51)}}{{CompatVersionUnknown}}{{ CompatGeckoDesktop(50) }}{{CompatNo}}{{CompatUnknown}}{{CompatUnknown}}
+
+ +
+ + + + + + + + + + + + + + + + + + + + + + + +
FeatureAndroidChrome for AndroidEdgeFirefox Mobile (Gecko)IE MobileOpera MobileSafari Mobile
Basic support{{CompatUnknown}}{{CompatUnknown}}{{CompatVersionUnknown}}{{ CompatGeckoMobile(50) }}{{CompatNo}}{{CompatUnknown}}{{CompatUnknown}}
+
+ +

Ver también

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