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+---
+title: HTMLFormElement.length
+slug: Web/API/HTMLFormElement/length
+translation_of: Web/API/HTMLFormElement/length
+---
+<div>
+<div>{{APIRef("HTML DOM")}}</div>
+</div>
+
+<p>La propriété en lecture seule <code><strong>HTMLFormElement.length</strong></code> retourne le nombre de contrôles présents dans l'élément {{HTMLElement("Form")}}.</p>
+
+<h2 id="Syntax" name="Syntax">Syntaxe</h2>
+
+<pre class="syntaxbox"><var>integer</var> = form.length
+</pre>
+
+<h2 id="Example" name="Example">Exemple</h2>
+
+<pre class="brush:js">if (document.getElementById("form1").length &gt; 1) {
+  // more than one form control here
+}
+</pre>
+
+<h2 id="Specifications" name="Specifications">Spécifications</h2>
+
+<ul>
+ <li><a href="http://www.w3.org/TR/html5/forms.html#dom-form-length" title="http://www.w3.org/TR/html5/forms.html#dom-form-length">HTML 5, Section 4.10.3, The form Element</a></li>
+ <li><a href="http://www.w3.org/TR/DOM-Level-2-HTML/html.html#HTML-HTMLFormElement-length">DOM Level 2: length</a></li>
+</ul>