{"json_modified": "2016-06-19T23:10:07.685507", "uuid": "45d750c1-6aad-4a4a-b57a-557ad9bf91c8", "title": "undefined", "url": "/ja/docs/Web/JavaScript/Reference/Global_Objects/undefined", "tags": ["JavaScript"], "translations": [{"uuid": "3bbd7c8f-9c1f-433f-9190-0fe2146ce3ed", "title": "undefined", "url": "/en-US/docs/Web/JavaScript/Reference/Global_Objects/undefined", "tags": ["JavaScript"], "summary": "The global <code><strong>undefined</strong></code> property represents the primitive value <code><a class=\"glossaryLink\" href=\"/en-US/docs/Glossary/Undefined\" title=\"undefined: Technical review completed.\">undefined</a></code>. It is one of JavaScript's <a class=\"glossaryLink\" href=\"/en-US/docs/Glossary/Primitive\" title=\"primitive types: A primitive (primitive value, primitive data type) is data that is not an object and has no methods. In JavaScript, there are 6 primitive data types: string, number, boolean, null, undefined, symbol (new in ECMAScript 2015).\">primitive types</a>.", "localization_tags": [], "locale": "en-US", "last_edit": "2016-05-18T16:19:28", "review_tags": []}, {"uuid": "098c2e5a-ddc6-4682-93d7-96584477c4b0", "title": "undefined", "url": "/es/docs/Web/JavaScript/Referencia/Objetos_globales/undefined", "tags": ["JavaScript"], "summary": "La propiedad global <strong>undefined</strong> representa el valor primitivo <code><a class=\"glossaryLink\" href=\"/en-US/docs/Glossary/Undefined\" title=\"undefined: Technical review completed.\">undefined</a></code>. Es uno de los <a class=\"glossaryLink\" href=\"/en-US/docs/Glossary/Primitive\" title=\"valores primitivos: A primitive (primitive value, primitive data type) is data that is not an object and has no methods. In JavaScript, there are 6 primitive data types: string, number, boolean, null, undefined, symbol (new in ECMAScript 2015).\">valores primitivos</a> de JavaScript.", "localization_tags": ["inprogress"], "locale": "es", "last_edit": "2016-06-19T14:09:23", "review_tags": ["editorial"]}, {"uuid": "8e1cbda1-fa26-4216-abb0-2e4d27285be7", "title": "undefined", "url": "/pl/docs/Web/JavaScript/Referencje/Obiekty/undefined", "tags": ["JavaScript"], "summary": "Warto\u015b\u0107 niezdefiniowana.", "localization_tags": [], "locale": "pl", "last_edit": "2015-04-25T02:23:27", "review_tags": []}, {"uuid": "6012ad5e-8913-4a2e-93bb-63ed76f99f2a", "title": "undefined", "url": "/fr/docs/Web/JavaScript/Reference/Objets_globaux/undefined", "tags": ["R\u00e9f\u00e9rence", "JavaScript"], "summary": "La propri\u00e9t\u00e9 globale <strong><code>undefined</code></strong> repr\u00e9sente la valeur <code>undefined</code><em>.</em> Cette valeur est l'<a href=\"/fr/docs/Web/JavaScript/Structures_de_donn&#xE9;es#Le_type_ind.C3.A9fini\">un des types primitifs de JavaScript</a>.", "localization_tags": [], "locale": "fr", "last_edit": "2016-05-19T05:02:18", "review_tags": []}, {"uuid": "98c2e5d4-34ab-4e19-a43f-6330f457298b", "title": "undefined", "url": "/zh-CN/docs/Web/JavaScript/Reference/Global_Objects/undefined", "tags": [], "summary": "<code>undefined</code>\u6709\u591a\u91cd\u89d2\u8272,\u901a\u5e38\u60c5\u51b5\u4e0b,\u6211\u4eec\u6240\u8bf4\u7684<code>undefined</code>\u90fd\u6307\u7684\u662f\u5168\u5c40\u5bf9\u8c61\u7684\u4e00\u4e2a\u5c5e\u6027<code>\"undefined\"</code>.", "localization_tags": [], "locale": "zh-CN", "last_edit": "2015-04-18T00:35:31", "review_tags": []}, {"uuid": "0a44f82b-1412-4068-965e-93167d9628d7", "title": "undefined", "url": "/ru/docs/Web/JavaScript/Reference/Global_Objects/undefined", "tags": ["JavaScript"], "summary": "\u0417\u043d\u0430\u0447\u0435\u043d\u0438\u0435 \u0433\u043b\u043e\u0431\u0430\u043b\u044c\u043d\u043e\u0433\u043e \u0441\u0432\u043e\u0439\u0441\u0442\u0432\u0430 <code><strong>undefined</strong></code> \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 <code>undefined</code>. \u042d\u0442\u043e \u043e\u0434\u043d\u043e \u0438\u0437 <a title=\"&#x41E;&#x43F;&#x440;&#x435;&#x434;&#x435;&#x43B;&#x435;&#x43D;&#x438;&#x435; &#x442;&#x435;&#x440;&#x43C;&#x438;&#x43D;&#x430; &#xAB;&#x43F;&#x440;&#x438;&#x43C;&#x438;&#x442;&#x438;&#x432;&#x43D;&#x44B;&#x445; &#x437;&#x43D;&#x430;&#x447;&#x435;&#x43D;&#x438;&#x439;&#xBB; &#x435;&#x449;&#x451; &#x43D;&#x435; &#x43D;&#x430;&#x43F;&#x438;&#x441;&#x430;&#x43D;&#x43E;; &#x43C;&#x43E;&#x436;&#x435;&#x442; &#x431;&#x44B;&#x442;&#x44C;, &#x432;&#x44B; &#x43D;&#x430;&#x43F;&#x438;&#x448;&#x435;&#x442;&#x435;?\" href=\"/ru/docs/Glossary/Primitive\" class=\"glossaryLink\">\u043f\u0440\u0438\u043c\u0438\u0442\u0438\u0432\u043d\u044b\u0445 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0439</a> JavaScript.", "localization_tags": [], "locale": "ru", "last_edit": "2016-04-15T10:55:21", "review_tags": []}, {"uuid": "1513282f-73a4-44d8-96ab-7739915c07b2", "title": "undefined", "url": "/de/docs/Web/JavaScript/Reference/Global_Objects/undefined", "tags": ["JavaScript"], "summary": "Die globale Eigenschaft <code><strong>undefined</strong></code> repr\u00e4sentiert den Wert <code>undefined</code>. Dieser Wert ist einer der <a class=\"glossaryLink\" href=\"/de/docs/Glossary/einfache_datenelemente\" title=\"primitiven Typen: Ein einfaches (skalares) Datenelement (einfacher Wert, einfacher Datentyp) ist ein Datenelement, dass kein object ist und keine methods besitzt.\">primitiven Typen</a> in JavaScript.", "localization_tags": [], "locale": "de", "last_edit": "2016-05-22T09:45:22", "review_tags": []}, {"uuid": "79c55c5b-7a61-4e2c-a721-ded26ff04e8f", "title": "undefined", "url": "/ca/docs/Web/JavaScript/Referencia/Objectes_globals/undefined", "tags": [], "summary": "El valor de la propietat global <code><strong>undefined</strong></code> representa el valor <code>undefined</code>. \u00c9s un dels <a title=\"tipus primitius: A primitive (primitive value, primitive data type) is data that is not an object and has no methods.\" href=\"/en-US/docs/Glossary/Primitive\" class=\"glossaryLink\">tipus primitius</a> de JavaScript.", "localization_tags": [], "locale": "ca", "last_edit": "2015-05-06T12:09:38", "review_tags": ["editorial"]}, {"uuid": "44a5e635-2260-4b5b-b3e7-a0880d02aae0", "title": "undefined", "url": "/pt-BR/docs/Web/JavaScript/Reference/Global_Objects/undefined", "tags": [], "summary": "O valor global <code>undefined</code> representa um valor indefinido. Trata-se de um dos\u00a0<a title=\"tipos primitivos: Um&#xA0;primitivo&#xA0;(valor primitivo, tipo de dados primitivo) &#xE9; um dado que n&#xE3;o &#xE9; representado atrav&#xE9;s de um&#xA0;Objeto e, por consequ&#xEA;ncia, n&#xE3;o possui m&#xE9;todos.\" href=\"/pt-BR/docs/Glossario/Primitivo\" class=\"glossaryLink\">tipos primitivos</a> do JavaScript.", "localization_tags": [], "locale": "pt-BR", "last_edit": "2015-02-15T15:36:33", "review_tags": []}, {"uuid": "f7ce4fc2-baf2-42d2-a498-1cad62a21422", "title": "undefined", "url": "/it/docs/Web/JavaScript/Reference/Global_Objects/undefined", "tags": [], "summary": "La variabile globale\u00a0<strong><code>undefined</code></strong>\u00a0rappresenta il valore primitivo\u00a0<span style=\"font-family: Consolas, Monaco, 'Andale Mono', monospace;\"><a title=\"undefined: A primitive value automatically assigned to variables that have just been declared or to formal arguments for which there are no actual arguments.\" href=\"/en-US/docs/Glossary/Undefined\" class=\"glossaryLink\">undefined</a></span>.\u00a0\u00c8 uno dei <a title=\"valori primitivi: A primitive (primitive value, primitive data type) is data that is not an object and has no methods.\" href=\"/en-US/docs/Glossary/Primitive\" class=\"glossaryLink\">valori primitivi</a> di JavaScript.", "localization_tags": [], "locale": "it", "last_edit": "2015-04-12T06:23:10", "review_tags": []}, {"uuid": "d109ef33-def0-4c0d-b4ce-b1428eee4571", "title": "undefined", "url": "/ko/docs/Web/JavaScript/Reference/Global_Objects/undefined", "tags": [], "summary": "\uc804\uc5ed\u00a0<code><strong>undefined</strong></code> \ud504\ub85c\ud37c\ud2f0\ub294\u00a0<code><a class=\"glossaryLink\" href=\"/en-US/docs/Glossary/Undefined\" title=\"undefined: A primitive value automatically assigned to variables that have just been declared or to formal arguments for which there are no actual arguments.\">undefined</a> \uc6d0\uc2dc \uac12\uc5d0 \ud574\ub2f9\ud55c\ub2e4</code>. JavaScript \uc758\u00a0<a class=\"glossaryLink\" href=\"/en-US/docs/Glossary/Primitive\" title=\"&#xC6D0;&#xC2DC; &#xD0C0;&#xC785;: A primitive (primitive value, primitive data type) is data that is not an object and has no methods. In JavaScript, there are 6 primitive data types: string, number, boolean, null, undefined, symbol (new in ECMAScript 2015).\">\uc6d0\uc2dc \ud0c0\uc785</a> \uc911 \ud558\ub098\uc774\ub2e4.", "localization_tags": ["inprogress"], "locale": "ko", "last_edit": "2015-12-25T07:36:05", "review_tags": []}], "modified": "2016-06-19T23:10:05", "label": "undefined", "localization_tags": [], "locale": "ja", "id": 11472, "last_edit": "2016-06-19T23:09:56", "summary": "\u30b0\u30ed\u30fc\u30d0\u30eb\u30d7\u30ed\u30d1\u30c6\u30a3 <code><strong>undefined</strong></code> \u306f\u30d7\u30ea\u30df\u30c6\u30a3\u30d6\u5024 <code><a class=\"glossaryLink\" href=\"/ja/docs/Glossary/Undefined\" title=\"undefined: undefined \u3068\u306f\u3001\u5ba3\u8a00\u306e\u307f\u304c\u884c\u308f\u308c\u305f\u5909\u6570\u3001\u3042\u308b\u3044\u306f\u5b9f\u5f15\u6570\u304c\u5b58\u5728\u3057\u306a\u3044\u4eee\u5f15\u6570\u306b\u81ea\u52d5\u7684\u306b\u5272\u308a\u5f53\u3066\u3089\u308c\u308b\u30d7\u30ea\u30df\u30c6\u30a3\u30d6\u5024\u306e\u3053\u3068\u3067\u3059\u3002\">undefined</a></code> \u3092\u8868\u3057\u307e\u3059\u3002\u3053\u308c\u306f JavaScript \u306b\u304a\u3051\u308b<a class=\"glossaryLink\" href=\"/ja/docs/Glossary/Primitive\" title=\"&#x30D7;&#x30EA;&#x30DF;&#x30C6;&#x30A3;&#x30D6;&#x578B;: &#x30D7;&#x30EA;&#x30DF;&#x30C6;&#x30A3;&#x30D6;&#xFF08;primitive&#x3001;&#x30D7;&#x30EA;&#x30DF;&#x30C6;&#x30A3;&#x30D6;&#x5024;&#x3001;&#x30D7;&#x30EA;&#x30DF;&#x30C6;&#x30A3;&#x30D6;&#x30C7;&#x30FC;&#x30BF;&#x578B;&#xFF09;&#x306F;&#x30AA;&#x30D6;&#x30B8;&#x30A7;&#x30AF;&#x30C8;&#x3067;&#x306A;&#x3044;&#x3001;&#x307E;&#x305F;&#x30E1;&#x30BD;&#x30C3;&#x30C9;&#x3092;&#x6301;&#x305F;&#x306A;&#x3044;&#x30C7;&#x30FC;&#x30BF;&#x306E;&#x3053;&#x3068;&#x3067;&#x3059;&#x3002;JavaScript &#x306B;&#x306F; 6 &#x3064;&#x306E;&#x30D7;&#x30EA;&#x30DF;&#x30C6;&#x30A3;&#x30D6;&#x30C7;&#x30FC;&#x30BF;&#x578B;&#x304C;&#x3042;&#x308A;&#x307E;&#x3059;&#x3002;&#x6587;&#x5B57;&#x5217;&#x3001;&#x6570;&#x5024;&#x3001;&#x30D6;&#x30FC;&#x30EA;&#x30A2;&#x30F3;&#x578B;&#x3001;null&#x3001;undefined&#x3001;&#x305D;&#x3057;&#x3066;&#x30B7;&#x30F3;&#x30DC;&#x30EB;&#x3067;&#x3059;&#xFF08;ECMAScript 2015 &#x3067;&#x8FFD;&#x52A0;&#xFF09;&#x3002;\">\u30d7\u30ea\u30df\u30c6\u30a3\u30d6\u578b</a>\u306e\u4e00\u3064\u3067\u3059\u3002", "sections": [{"id": "Quick_Links", "title": null}, {"id": "Syntax", "title": "\u69cb\u6587"}, {"id": "Description", "title": "\u8aac\u660e"}, {"id": "Examples", "title": "\u7528\u4f8b"}, {"id": "Strict_equality_and_undefined", "title": "\u53b3\u683c\u306a\u7b49\u4fa1\u8a55\u4fa1\u3068 "}, {"id": "Typeof_operator_and_undefined", "title": null}, {"id": "Void_operator_and_undefined", "title": null}, {"id": "Specifications", "title": "\u4ed5\u69d8"}, {"id": "Browser_compatibility", "title": "\u30d6\u30e9\u30a6\u30b6\u306e\u5b9f\u88c5\u72b6\u6cc1"}], "slug": "Web/JavaScript/Reference/Global_Objects/undefined", "review_tags": []}