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+---
+title: WeakMap.prototype
+slug: conflicting/Web/JavaScript/Reference/Global_Objects/WeakMap
+translation_of: Web/JavaScript/Reference/Global_Objects/WeakMap
+translation_of_original: Web/JavaScript/Reference/Global_Objects/WeakMap/prototype
+original_slug: Web/JavaScript/Reference/Global_Objects/WeakMap/prototype
+---
+<div>{{JSRef("Global_Objects", "WeakMap")}}</div>
+
+<h2 id="Summary" name="Summary">Sumário</h2>
+
+<p>A propriedade <code><strong>WeakMap</strong></code><strong><code>.prototype</code></strong> representa o prototype fara o construtor {{jsxref("WeakMap")}}.</p>
+
+<div>{{js_property_attributes(0,0,0)}}</div>
+
+<h2 id="Description" name="Description">Descrição</h2>
+
+<p>Instâncias {{jsxref("WeakMap")}} herdam de {{jsxref("WeakMap.prototype")}}. Você pode usar o objeto <code>prototype</code> do construtor para adicionar propriedades ou métodos para todas as instâncias <code>WeakMap</code>.</p>
+
+<h2 id="Propriedades">Propriedades</h2>
+
+<dl>
+ <dt><code>WeakMap.prototype.constructor</code></dt>
+ <dd>Retorna a função construtora das instâncias, neste caso a própria <code>{{jsxref("WeakMap")}}</code>.</dd>
+</dl>
+
+<h2 id="Metodos">Metodos</h2>
+
+<dl>
+ <dt>{{jsxref("WeakMap.prototype.clear()")}}</dt>
+ <dd>Remove todos os pares chave/valor do objeto <code>WeakMap</code></dd>
+ <dt>{{jsxref("WeakMap.delete", "WeakMap.prototype.delete(key)")}}</dt>
+ <dd>Remove qualquer valor associado à  <code style="font-style: normal; line-height: 1.5;">key</code><span style="line-height: 1.5;">. </span><code style="font-style: normal; line-height: 1.5;">WeakMap.prototype.has(key)</code> e retorna <code style="font-style: normal; line-height: 1.5;">false</code> após.</dd>
+ <dt>{{jsxref("WeakMap.get", "WeakMap.prototype.get(key)")}}</dt>
+ <dd>Retorna o valor associado a <code>key</code>, ou <code>undefined</code> se nenhum existir.</dd>
+ <dt>{{jsxref("WeakMap.has", "WeakMap.prototype.has(key)")}}</dt>
+ <dd>Retorna um Boolean verificando se há algum valor associado a <code>key</code> no objeto <code>WeakMap</code> ou não.</dd>
+ <dt>{{jsxref("WeakMap.set", "WeakMap.prototype.set(key, value)")}}</dt>
+ <dd>Configura um valor para <code>key</code> no objeto <code>WeakMap</code>. Retorna <code>undefined</code>.</dd>
+</dl>
+
+<h2 id="Especificações">Especificações</h2>
+
+<table class="standard-table">
+ <tbody>
+ <tr>
+ <th scope="col">Especificação</th>
+ <th scope="col">Status</th>
+ <th scope="col">Comentário</th>
+ </tr>
+ <tr>
+ <td>{{SpecName('ES6', '#sec-weakmap.prototype', 'WeakMap.prototype')}}</td>
+ <td>{{Spec2('ES6')}}</td>
+ <td>Especificação inicial.</td>
+ </tr>
+ </tbody>
+</table>
+
+<h2 id="Compatibilidade_de_browsers">Compatibilidade de browsers </h2>
+
+<p>{{CompatibilityTable}}</p>
+
+<div id="compat-desktop">
+<table class="compat-table">
+ <tbody>
+ <tr>
+ <th>Recurso</th>
+ <th>Chrome</th>
+ <th>Firefox (SpiderMonkey)</th>
+ <th>Internet Explorer</th>
+ <th>Opera</th>
+ <th>Safari</th>
+ </tr>
+ <tr>
+ <td>Suporte básico</td>
+ <td>{{CompatVersionUnknown}}</td>
+ <td>{{CompatGeckoDesktop("6.0")}}</td>
+ <td>11</td>
+ <td>{{CompatNo}}</td>
+ <td>{{CompatNo}}</td>
+ </tr>
+ </tbody>
+</table>
+</div>
+
+<div id="compat-mobile">
+<table class="compat-table">
+ <tbody>
+ <tr>
+ <th>Recurso</th>
+ <th>Android</th>
+ <th>Firefox Mobile (SpiderMonkey)</th>
+ <th>IE Mobile</th>
+ <th>Opera Mobile</th>
+ <th>Safari Mobile</th>
+ </tr>
+ <tr>
+ <td>Suporte básico</td>
+ <td>{{CompatNo}}</td>
+ <td>{{CompatGeckoMobile("6.0")}}</td>
+ <td>{{CompatNo}}</td>
+ <td>{{CompatNo}}</td>
+ <td>{{CompatNo}}</td>
+ </tr>
+ </tbody>
+</table>
+</div>
+
+<h3 id="Notas_para_o_Chrome">Notas para o Chrome</h3>
+
+<ul>
+ <li>O recurso é ativado por preferência. Em <span style="font-family: 'Courier New','Andale Mono',monospace;">chrome://flags </span>ative "Enable Experimental JavaScript".</li>
+</ul>
+
+<h2 id="Veja_também">Veja também</h2>
+
+<ul>
+ <li>{{jsxref("Map.prototype")}}</li>
+</ul>