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authorPeter Bengtsson <mail@peterbe.com>2020-12-08 14:41:45 -0500
committerPeter Bengtsson <mail@peterbe.com>2020-12-08 14:41:45 -0500
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+---
+title: Reflect
+slug: Web/JavaScript/Reference/Global_Objects/Reflect
+tags:
+ - ECMAScript 2015
+ - JavaScript
+ - NeedsTranslation
+ - Overview
+ - Reflect
+ - TopicStub
+translation_of: Web/JavaScript/Reference/Global_Objects/Reflect
+---
+<div>{{JSRef}}</div>
+
+<p><strong>Reflect </strong> es un objecto incorporado que proporciona metodos para interceptar operaciones de javascript. Los métodos son los mismos que los de <a href="/en-US/docs/Web/JavaScript/Reference/Global_Objects/Proxy/handler">proxy handlers</a>. <code>Reflect</code> no es un objeto de funciones y por lo tanto no puede ser construido.</p>
+
+<h2 id="Descripción">Descripción</h2>
+
+<p>A diferencia de la mayoria de los objetos globales, <code>Reflect</code> no es un constructor.  No puede ser instanciado con un <a href="/en-US/docs/Web/JavaScript/Reference/Operators/new">operador</a> <a href="/en-US/docs/Web/JavaScript/Reference/Operators/new"><code>new</code> </a>o invocando el objecto  <code>Reflect</code> como una función. Todas las propiedades y métodos de <code>Reflect</code> son estáticos (igual que los del objeto {{jsxref("Math")}}).</p>
+
+<h2 id="Métodos">Métodos</h2>
+
+<p>El objeto <code>Reflect</code>  proporciona las siguientes funciones estáticas con los mismos nombres de los métodos de <a href="/en-US/docs/Web/JavaScript/Reference/Global_Objects/Proxy/handler">proxy handler</a>. Algunos de estos métodos son correspondientes a los métodos de {{jsxref("Object")}}.</p>
+
+<dl>
+ <dt>{{jsxref("Reflect.apply()")}}</dt>
+ <dd>Calls a target function with arguments as specified by the <code>args</code> parameter. See also {{jsxref("Function.prototype.apply()")}}.</dd>
+ <dt>{{jsxref("Reflect.construct()")}}</dt>
+ <dd> The <a href="/en-US/docs/Web/JavaScript/Reference/Operators/new"><code>new</code> operator</a> as a function. Equivalent to calling <code>new target(...args)</code>.</dd>
+ <dt>{{jsxref("Reflect.defineProperty()")}}</dt>
+ <dd>Similar to {{jsxref("Object.defineProperty()")}}. Returns a {{jsxref("Boolean")}}.</dd>
+ <dt>{{jsxref("Reflect.deleteProperty()")}}</dt>
+ <dd>The <a href="/en-US/docs/Web/JavaScript/Reference/Operators/delete"><code>delete</code> operator</a> as a function. Equivalent to calling <code>delete target[name]</code>.</dd>
+ <dt>{{jsxref("Reflect.get()")}}</dt>
+ <dd>A function that returns the value of properties.</dd>
+ <dt>{{jsxref("Reflect.getOwnPropertyDescriptor()")}}</dt>
+ <dd>Similar to {{jsxref("Object.getOwnPropertyDescriptor()")}}. Returns a property descriptor of the given property if it exists on the object,  {{jsxref("undefined")}} otherwise.</dd>
+ <dt>{{jsxref("Reflect.getPrototypeOf()")}}</dt>
+ <dd>Same as {{jsxref("Object.getPrototypeOf()")}}.</dd>
+ <dt>{{jsxref("Reflect.has()")}}</dt>
+ <dd>The <a href="/en-US/docs/Web/JavaScript/Reference/Operators/in"><code>in</code> operator</a> as function. Returns a boolean indicating whether an own or inherited property exists.</dd>
+ <dt>{{jsxref("Reflect.isExtensible()")}}</dt>
+ <dd>Same as {{jsxref("Object.isExtensible()")}}.</dd>
+ <dt>{{jsxref("Reflect.ownKeys()")}}</dt>
+ <dd>Returns an array of the target object's own (not inherited) property keys.</dd>
+ <dt>{{jsxref("Reflect.preventExtensions()")}}</dt>
+ <dd>Similar to {{jsxref("Object.preventExtensions()")}}. Returns a {{jsxref("Boolean")}}.</dd>
+ <dt>{{jsxref("Reflect.set()")}}</dt>
+ <dd>A function that assigns values to properties. Returns a {{jsxref("Boolean")}} that is <code>true</code> if the update was successful.</dd>
+ <dt>{{jsxref("Reflect.setPrototypeOf()")}}</dt>
+ <dd>A function that sets the prototype of an object.</dd>
+</dl>
+
+<h2 id="Especificaciones">Especificaciones</h2>
+
+<table class="standard-table">
+ <tbody>
+ <tr>
+ <th scope="col">Specification</th>
+ <th scope="col">Status</th>
+ <th scope="col">Comment</th>
+ </tr>
+ <tr>
+ <td>{{SpecName('ES2015', '#sec-reflect-object', 'Reflect')}}</td>
+ <td>{{Spec2('ES2015')}}</td>
+ <td>Initial definition.</td>
+ </tr>
+ <tr>
+ <td>{{SpecName('ESDraft', '#sec-reflect-object', 'Reflect')}}</td>
+ <td>{{Spec2('ESDraft')}}</td>
+ <td>Reflect.enumerate has been removed.</td>
+ </tr>
+ </tbody>
+</table>
+
+<h2 id="Compatibilidad_en_Navegadores">Compatibilidad en Navegadores</h2>
+
+<p>{{CompatibilityTable}}</p>
+
+<div id="compat-desktop">
+<table class="compat-table">
+ <tbody>
+ <tr>
+ <th>Feature</th>
+ <th>Chrome</th>
+ <th>Edge</th>
+ <th>Firefox (Gecko)</th>
+ <th>Internet Explorer</th>
+ <th>Opera</th>
+ <th>Safari</th>
+ </tr>
+ <tr>
+ <td>Basic support</td>
+ <td>{{CompatChrome(49.0)}}</td>
+ <td>{{CompatVersionUnknown}}</td>
+ <td>{{CompatGeckoDesktop("42")}}</td>
+ <td>{{CompatNo}}</td>
+ <td>{{CompatNo}}</td>
+ <td>{{CompatSafari(10)}}</td>
+ </tr>
+ </tbody>
+</table>
+</div>
+
+<div id="compat-mobile">
+<table class="compat-table">
+ <tbody>
+ <tr>
+ <th>Feature</th>
+ <th>Android</th>
+ <th>Chrome for Android</th>
+ <th>Edge</th>
+ <th>Firefox Mobile (Gecko)</th>
+ <th>IE Mobile</th>
+ <th>Opera Mobile</th>
+ <th>Safari Mobile</th>
+ </tr>
+ <tr>
+ <td>Basic support</td>
+ <td>{{CompatChrome(49.0)}}</td>
+ <td>{{CompatChrome(49.0)}}</td>
+ <td>{{CompatVersionUnknown}}</td>
+ <td>{{CompatGeckoMobile("42")}}</td>
+ <td>{{CompatNo}}</td>
+ <td>{{CompatNo}}</td>
+ <td>{{CompatSafari(10)}}</td>
+ </tr>
+ </tbody>
+</table>
+</div>
+
+<h2 id="También_ver">También ver</h2>
+
+<ul>
+ <li>The {{jsxref("Proxy")}} global object.</li>
+ <li>The {{jsxref("Proxy.handler", "handler")}} object.</li>
+</ul>
diff --git a/files/es/web/javascript/reference/global_objects/reflect/set/index.html b/files/es/web/javascript/reference/global_objects/reflect/set/index.html
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+---
+title: Reflect.set()
+slug: Web/JavaScript/Reference/Global_Objects/Reflect/set
+translation_of: Web/JavaScript/Reference/Global_Objects/Reflect/set
+---
+<div>{{JSRef}}</div>
+
+<p>El método estático <code><strong>Reflect</strong></code><strong><code>.set()</code></strong> funciona igual que asignar una propiedad en un objeto.</p>
+
+<h2 id="Sintaxis">Sintaxis</h2>
+
+<pre class="syntaxbox">Reflect.set(target, propertyKey, value[, receiver])
+</pre>
+
+<h3 id="Parámetros">Parámetros</h3>
+
+<dl>
+ <dt><code>target</code></dt>
+ <dd>El objeto en el cual se va a asignar una propiedad.</dd>
+ <dt><code>propertyKey</code></dt>
+ <dd>El nombre de la propiedad a asignar.</dd>
+ <dt>value</dt>
+ <dd>El valor de la propiedad.</dd>
+ <dt>receiver</dt>
+ <dd>El valor de <code>this</code> para usar en la llamada a <code>target</code> si se encuentra un setter.</dd>
+</dl>
+
+<h3 id="Valor_de_retorno">Valor de retorno</h3>
+
+<p>Un {{jsxref("Boolean")}} indicando si se pudo o no asignar la propiedad.</p>
+
+<h3 id="Excepciones">Excepciones</h3>
+
+<p>Un {{jsxref("TypeError")}}, si <code>target</code> no es un {{jsxref("Object")}}.</p>
+
+<h2 id="Descripción">Descripción</h2>
+
+<p>El método <code>Reflect.set</code> permite asignar una propiedad a un objeto. It does property assignment and is like the <a href="/en-US/docs/Web/JavaScript/Reference/Operators/Property_Accessors">property accessor</a> syntax as a function.</p>
+
+<h2 id="Ejemplos">Ejemplos</h2>
+
+<h3 id="Uso_de_Reflect.set()"><code><font face="x-locale-heading-primary, zillaslab, Palatino, Palatino Linotype, x-locale-heading-secondary, serif">Uso de </font>Reflect.set()</code></h3>
+
+<pre class="brush: js">// Objeto
+var obj = {};
+Reflect.set(obj, 'prop', 'value'); // true
+obj.prop; // "value"
+
+// Arreglo
+var arr = ['duck', 'duck', 'duck'];
+Reflect.set(arr, 2, 'goose'); // true
+arr[2]; // "goose"
+
+// Puede truncar un arreglo.
+Reflect.set(arr, 'length', 1); // true
+arr; // ["duck"];
+
+// Con solo un argumento, propertyKey y value son "undefined".
+var obj = {};
+Reflect.set(obj); // true
+Reflect.getOwnPropertyDescriptor(obj, 'undefined');
+// { value: undefined, writable: true, enumerable: true, configurable: true }
+</pre>
+
+<h2 id="Especificaciones">Especificaciones</h2>
+
+<table class="standard-table">
+ <tbody>
+ <tr>
+ <th scope="col">Especificación</th>
+ <th scope="col">Estado</th>
+ <th scope="col">Comentarios</th>
+ </tr>
+ <tr>
+ <td>{{SpecName('ES2015', '#sec-reflect.set', 'Reflect.set')}}</td>
+ <td>{{Spec2('ES2015')}}</td>
+ <td>Initial definition.</td>
+ </tr>
+ <tr>
+ <td>{{SpecName('ESDraft', '#sec-reflect.set', 'Reflect.set')}}</td>
+ <td>{{Spec2('ESDraft')}}</td>
+ <td> </td>
+ </tr>
+ </tbody>
+</table>
+
+<h2 id="Compatibilidad_con_navegadores">Compatibilidad con navegadores</h2>
+
+<p>{{CompatibilityTable}}</p>
+
+<div id="compat-desktop">
+<table class="compat-table">
+ <tbody>
+ <tr>
+ <th>Característica</th>
+ <th>Chrome</th>
+ <th>Edge</th>
+ <th>Firefox (Gecko)</th>
+ <th>Internet Explorer</th>
+ <th>Opera</th>
+ <th>Safari</th>
+ </tr>
+ <tr>
+ <td>Soporte básico</td>
+ <td>49</td>
+ <td>{{CompatVersionUnknown}}</td>
+ <td>{{CompatGeckoDesktop(42)}}</td>
+ <td>{{CompatNo}}</td>
+ <td>{{CompatNo}}</td>
+ <td>10</td>
+ </tr>
+ </tbody>
+</table>
+</div>
+
+<div id="compat-mobile">
+<table class="compat-table">
+ <tbody>
+ <tr>
+ <th>Característica</th>
+ <th>Android</th>
+ <th>Chrome for Android</th>
+ <th>Edge</th>
+ <th>Firefox Mobile (Gecko)</th>
+ <th>IE Mobile</th>
+ <th>Opera Mobile</th>
+ <th>Safari Mobile</th>
+ </tr>
+ <tr>
+ <td>Soporte básico</td>
+ <td>{{CompatNo}}</td>
+ <td>49</td>
+ <td>{{CompatVersionUnknown}}</td>
+ <td>{{CompatGeckoMobile(42)}}</td>
+ <td>{{CompatNo}}</td>
+ <td>{{CompatNo}}</td>
+ <td>10</td>
+ </tr>
+ </tbody>
+</table>
+</div>
+
+<h2 id="Ver_también">Ver también</h2>
+
+<ul>
+ <li>{{jsxref("Reflect")}}</li>
+ <li><a href="/en-US/docs/Web/JavaScript/Reference/Operators/Property_Accessors">Property accessors</a></li>
+</ul>