{"json_modified": "2016-10-10T23:21:09.197784", "uuid": "85cee852-1746-4add-b328-2849fb6272f8", "title": "instanceof", "url": "/en-US/docs/Web/JavaScript/Reference/Operators/instanceof", "tags": ["instanceof", "operator", "Relational Operators", "Object", "Prototype", "JavaScript", "Operator"], "translations": [{"uuid": "589b5be3-0ca3-43ab-a536-e853ce744461", "title": "instanceof", "url": "/de/docs/Web/JavaScript/Reference/Operators/instanceof", "tags": ["instanceof", "operator", "Relational Operators", "Object", "Prototype", "JavaScript", "Operator"], "summary": "Der <strong><code>instanceof</code> Operator</strong> pr\u00fcft, ob ein Objekt die prototype Eigenschaft einer Konstruktorfunktion in seiner Prototypenkette besitzt.", "localization_tags": [], "locale": "de", "last_edit": "2016-10-02T02:01:32", "review_tags": []}, {"uuid": "8c6172c9-7500-4d57-b976-27bbd3aae4c6", "title": "instanceof", "url": "/es/docs/Web/JavaScript/Referencia/Operadores/instanceof", "tags": ["Relational Operators", "Operator", "JavaScript"], "summary": "El operador <code>instanceof</code> devuelve verdadero si el objeto especificado es del tipo especificado.", "localization_tags": [], "locale": "es", "last_edit": "2014-11-19T11:42:05", "review_tags": []}, {"uuid": "b4350cf8-f61d-433a-802a-c8b1b46ef41b", "title": "instanceof", "url": "/fr/docs/Web/JavaScript/Reference/Op%C3%A9rateurs/instanceof", "tags": ["instanceof", "operator", "Reference", "R\u00e9f\u00e9rence", "Prototype", "JavaScript", "Operator"], "summary": "L'<strong>op\u00e9rateur <code>instanceof</code></strong> permet de tester si un objet poss\u00e8de, dans sa cha\u00eene de prototype, la propri\u00e9t\u00e9 <code>prototype</code> d'un certain constructeur.", "localization_tags": [], "locale": "fr", "last_edit": "2016-08-16T03:57:54", "review_tags": []}, {"uuid": "8ff7effe-e126-41d1-bc22-2aeef5073694", "title": "instanceof", "url": "/ja/docs/JavaScript/Reference/Operators/instanceof", "tags": ["instanceof", "operator", "Object", "Prototype", "JavaScript", "Relational Operator", "Operator"], "summary": "<strong><code>instanceof</code></strong> \u6f14\u7b97\u5b50\u306f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u81ea\u8eab\u306e\u30d7\u30ed\u30c8\u30bf\u30a4\u30d7\u306b\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306e <code>prototype</code> \u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u6301\u3063\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002", "localization_tags": [], "locale": "ja", "last_edit": "2016-10-01T18:31:39", "review_tags": []}, {"uuid": "d6d64589-176f-4786-ae8a-4addb70cd82e", "title": "instanceof", "url": "/ko/docs/Web/JavaScript/Reference/Operators/instanceof", "tags": [], "summary": "", "localization_tags": ["inprogress"], "locale": "ko", "last_edit": "2016-08-15T21:38:23", "review_tags": []}, {"uuid": "94765348-f05f-4f74-aca0-15e15ab11784", "title": "Operator instanceof", "url": "/pl/docs/Web/JavaScript/Referencje/Operatory/Operator_instanceof", "tags": ["Dokumentacja_JavaScript", "JavaScript", "Dokumentacje", "Strony_wymagaj\u0105ce_dopracowania", "Wszystkie_kategorie"], "summary": "Operator <code>instanceof</code> zwraca <code>true</code>, je\u017celi okre\u015blony obiekt jest obiektem okre\u015blonego typu .", "localization_tags": [], "locale": "pl", "last_edit": "2014-07-18T08:20:30", "review_tags": []}, {"uuid": "e68efbf4-ea24-4b30-991b-3bc99c59447c", "title": "instanceof", "url": "/pt-BR/docs/Web/JavaScript/Reference/Operators/instanceof", "tags": [], "summary": "O operador <span style=\"font-family: Consolas, Monaco, 'Andale Mono', monospace;\">instanceof</span>\u00a0testa a presen\u00e7a da fun\u00e7\u00e3o construtora no\u00a0prototype do objeto.", "localization_tags": ["inprogress"], "locale": "pt-BR", "last_edit": "2015-04-18T08:05:58", "review_tags": []}, {"uuid": "e9c39f7c-a7f9-4d10-a32f-2efeeb01fc05", "title": "instanceof", "url": "/ru/docs/Web/JavaScript/Reference/Operators/instanceof", "tags": [], "summary": "\u041e\u043f\u0435\u0440\u0430\u0442\u043e\u0440\u00a0<strong><code>instanceof</code> </strong>\u00a0\u043f\u0440\u043e\u0432\u0435\u0440\u044f\u0435\u0442\u00a0\u043a \u043a\u0430\u043a\u043e\u043c\u0443 \u043a\u043b\u0430\u0441\u0441\u0443 \u043f\u0440\u0438\u043d\u0430\u0434\u043b\u0435\u0436\u0438\u0442 \u043e\u0431\u044a\u0435\u043a\u0442.", "localization_tags": ["inprogress"], "locale": "ru", "last_edit": "2016-06-08T01:42:05", "review_tags": []}, {"uuid": "d92b9fe6-5021-4f15-b260-1c5abc185286", "title": "instanceof", "url": "/zh-CN/docs/Web/JavaScript/Reference/Operators/instanceof", "tags": ["instanceof", "\u5bf9\u8c61", "Object", "Prototype", "JavaScript", "\u539f\u578b"], "summary": "<code><strong>instanceof</strong></code> \u8fd0\u7b97\u7b26\u7528\u6765\u6d4b\u8bd5\u4e00\u4e2a\u5bf9\u8c61\u5728\u5176\u539f\u578b\u94fe\u4e2d\u662f\u5426\u5b58\u5728\u4e00\u4e2a\u6784\u9020\u51fd\u6570\u7684\u00a0<code>prototype</code>\u00a0\u5c5e\u6027\u3002", "localization_tags": [], "locale": "zh-CN", "last_edit": "2016-10-10T23:20:21", "review_tags": []}], "modified": "2016-08-14T15:15:51", "label": "instanceof", "localization_tags": [], "locale": "en-US", "id": 2658, "last_edit": "2016-08-14T15:15:43", "summary": "The <strong><code>instanceof</code> operator</strong> tests whether an object has in its prototype chain the <code>prototype</code> property of a constructor.", "sections": [{"id": "Quick_Links", "title": null}, {"id": "Syntax", "title": "Syntax"}, {"id": "Parameters", "title": "Parameters"}, {"id": "Description", "title": "Description"}, {"id": "instanceof_and_multiple_context_(e.g._frames_or_windows)", "title": null}, {"id": "Examples", "title": "Examples"}, {"id": "Demonstrating_that_String_and_Date_are_of_type_Object_and_exceptional_cases", "title": "Demonstrating that "}, {"id": "Demonstrating_that_mycar_is_of_type_Car_and_type_Object", "title": "Demonstrating that "}, {"id": "Specifications", "title": "Specifications"}, {"id": "Browser_compatibility", "title": "Browser compatibility"}, {"id": "See_also", "title": "See also"}], "slug": "Web/JavaScript/Reference/Operators/instanceof", "review_tags": []}