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authorPeter Bengtsson <mail@peterbe.com>2020-12-08 14:42:52 -0500
committerPeter Bengtsson <mail@peterbe.com>2020-12-08 14:42:52 -0500
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+---
+title: Element.id
+slug: Web/API/Element/id
+tags:
+ - API
+ - DOM
+ - Gecko
+ - Property
+ - Reference
+translation_of: Web/API/Element/id
+---
+<div>{{ApiRef("DOM")}}</div>
+
+<div> </div>
+
+<p>A propriedade <strong><code>Element.id</code></strong> representa o identificador do elemento, refletindo no atributo global <strong><a href="/en-US/docs/Web/HTML/Global_attributes/id">id</a></strong>.</p>
+
+<p>O ID precisa ser único no documento, e geralmente é utilizado para obter o elemento usando {{domxref("document.getElementById", "getElementById")}}.. Outro uso comum de <code>id</code> é utilizar o <a href="/en-US/docs/Web/CSS/ID_selectors" title="Web/CSS/ID_selectors">ID como um seletor</a> ao estilizar o documento com CSS.</p>
+
+<div class="note">
+<p><strong>Nota</strong>: IDs são case-sensitive, mas você não deve criar IDs cuja única diferença nos nomes sejam letras maiúsculas/minúsculas (veja <a href="/en-US/docs/Case_Sensitivity_in_class_and_id_Names" title="Case_Sensitivity_in_class_and_id_Names">Case sensitivity in class and id names</a>).</p>
+</div>
+
+<h2 id="Syntax" name="Syntax">Sintaxe</h2>
+
+<pre class="syntaxbox"><em>var idStr</em> = <em>element</em>.id; // Retorna o id.
+<em>element</em>.id = <em>idStr; // Insere o id</em>
+</pre>
+
+<ul>
+ <li><code>idStr</code> é o identificador do elemento.</li>
+</ul>
+
+<h2 id="Specification" name="Specification">Especificações</h2>
+
+<table class="standard-table">
+ <thead>
+ <tr>
+ <th scope="col">Especificação</th>
+ <th scope="col">Status</th>
+ <th scope="col">Comentário</th>
+ </tr>
+ </thead>
+ <tbody>
+ <tr>
+ <td>{{SpecName('DOM WHATWG', '#dom-element-id', 'id')}}</td>
+ <td>{{Spec2('DOM WHATWG')}}</td>
+ <td>Sem alteração desde {{SpecName('DOM2 HTML')}}.</td>
+ </tr>
+ <tr>
+ <td>{{SpecName('DOM2 HTML', 'html.html#ID-63534901', 'id')}}</td>
+ <td>{{Spec2('DOM2 HTML')}}</td>
+ <td>Sem alteração desde {{SpecName('DOM1')}}.</td>
+ </tr>
+ <tr>
+ <td>{{SpecName('DOM1', 'level-one-html.html#ID-63534901', 'id')}}</td>
+ <td>{{Spec2('DOM1')}}</td>
+ <td>Definição inicial.</td>
+ </tr>
+ </tbody>
+</table>
+
+<h2 id="Compatibilidade_com_os_browsers">Compatibilidade com os browsers</h2>
+
+<p>{{ CompatibilityTable() }}</p>
+
+<div id="compat-desktop">
+<table class="compat-table">
+ <tbody>
+ <tr>
+ <th>Feature</th>
+ <th>Chrome</th>
+ <th>Firefox (Gecko)</th>
+ <th>Internet Explorer</th>
+ <th>Opera</th>
+ <th>Safari</th>
+ </tr>
+ <tr>
+ <td>Suporte básico</td>
+ <td>{{ CompatVersionUnknown() }}</td>
+ <td>{{ CompatVersionUnknown() }}</td>
+ <td>{{ CompatVersionUnknown() }}</td>
+ <td>{{ CompatVersionUnknown() }}</td>
+ <td>{{ CompatVersionUnknown() }}</td>
+ </tr>
+ </tbody>
+</table>
+</div>
+
+<div id="compat-mobile">
+<table class="compat-table">
+ <tbody>
+ <tr>
+ <th>Feature</th>
+ <th>Android</th>
+ <th>Chrome para Android</th>
+ <th>Firefox Mobile (Gecko)</th>
+ <th>IE Mobile</th>
+ <th>Opera Mobile</th>
+ <th>Safari Mobile</th>
+ </tr>
+ <tr>
+ <td>Suporte básico</td>
+ <td>{{ CompatVersionUnknown() }}</td>
+ <td>{{ CompatVersionUnknown() }}</td>
+ <td>{{ CompatVersionUnknown() }}</td>
+ <td>{{ CompatVersionUnknown() }}</td>
+ <td>{{ CompatVersionUnknown() }}</td>
+ <td>{{ CompatVersionUnknown() }}</td>
+ </tr>
+ </tbody>
+</table>
+</div>
+
+<h2 id="Veja_também">Veja também</h2>
+
+<ul>
+ <li>O atributo global <a href="/en-US/docs/Web/HTML/Global_attributes/id"><strong>id</strong></a>.</li>
+</ul>