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Diffstat (limited to 'files/ru/web/api/parentnode/lastelementchild/index.html')
| -rw-r--r-- | files/ru/web/api/parentnode/lastelementchild/index.html | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/files/ru/web/api/parentnode/lastelementchild/index.html b/files/ru/web/api/parentnode/lastelementchild/index.html new file mode 100644 index 0000000000..d625dc316f --- /dev/null +++ b/files/ru/web/api/parentnode/lastelementchild/index.html @@ -0,0 +1,161 @@ +--- +title: ParentNode.lastElementChild +slug: Web/API/ParentNode/lastElementChild +tags: + - API + - DOM + - ParentNode + - Property + - Reference +translation_of: Web/API/ParentNode/lastElementChild +--- +<p>{{ APIRef("DOM") }}</p> + +<p><code><strong>Свойство ParentNode.lastElementChild</strong></code> только для чтения. Возвращает последний дочерний элемент объекта или <code>null</code> если нет дочерних элементов.</p> + +<div class="note"> +<p>This property was initially defined in the {{domxref("ElementTraversal")}} pure interface. As this interface contained two distinct set of properties, one aimed at {{domxref("Node")}} that have children, one at those that are children, they have been moved into two separate pure interfaces, {{domxref("ParentNode")}} and {{domxref("ChildNode")}}. In this case, <code>lastElementChild</code> moved to {{domxref("ParentNode")}}. This is a fairly technical change that shouldn't affect compatibility.</p> +</div> + +<h2 id="Syntax_and_values" name="Syntax_and_values">Синтаксис</h2> + +<pre class="syntaxbox">var <em>element</em> = node.lastElementChild; </pre> + +<h2 id="Example" name="Example">Пример</h2> + +<pre class="brush: html"><ul id="foo"> + <li>First (1)</li> + <li>Second (2)</li> + <li>Third (3)</li> +</ul> + +<script> +var foo = document.getElementById('foo'); +// yields: Third (3) +console.log(foo.lastElementChild.textContent); +</script> +</pre> + +<h2 id="Polyfill_for_IE8_IE9_and_Safari">Polyfill for IE8, IE9 and Safari</h2> + +<pre class="brush: js">// Overwrites native 'lastElementChild' prototype. +// Adds Document & DocumentFragment support for IE9 & Safari. +// Returns array instead of HTMLCollection. +;(function(constructor) { + if (constructor && + constructor.prototype && + constructor.prototype.lastElementChild == null) { + Object.defineProperty(constructor.prototype, 'lastElementChild', { + get: function() { + var node, nodes = this.childNodes, i = nodes.length - 1; + while (node = nodes[i--]) { + if (node.nodeType === 1) { + return node; + } + } + return null; + } + }); + } +})(window.Node || window.Element); +</pre> + +<h2 id="Спецификация">Спецификация</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('DOM WHATWG', '#dom-parentnode-lastelementchild', 'ParentNode.lastElementChild')}}</td> + <td>{{Spec2('DOM WHATWG')}}</td> + <td>Splitted the <code>ElementTraversal</code> interface in {{domxref("ChildNode")}} and <code>ParentNode</code>. This method is now defined on the latter.<br> + The {{domxref("Document")}} and {{domxref("DocumentFragment")}} implemented the new interfaces.</td> + </tr> + <tr> + <td>{{SpecName('Element Traversal', '#attribute-lastElementChild', 'ElementTraversal.lastElementChild')}}</td> + <td>{{Spec2('Element Traversal')}}</td> + <td>Added its initial definition to the <code>ElementTraversal</code> pure interface and use it on {{domxref("Element")}}.</td> + </tr> + </tbody> +</table> + +<h2 id="Совместимость_с_браузерами">Совместимость с браузерами</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>Basic support (on {{domxref("Element")}})</td> + <td>1.0</td> + <td>{{CompatGeckoDesktop("1.9.1")}}</td> + <td>9.0</td> + <td>10.0</td> + <td>4.0</td> + </tr> + <tr> + <td>Support on {{domxref("Document")}} and {{domxref("DocumentFragment")}} {{experimental_inline}}</td> + <td>29.0</td> + <td>{{CompatGeckoDesktop("25.0")}}</td> + <td>{{CompatNo}}</td> + <td>16.0</td> + <td>{{CompatNo}}</td> + </tr> + </tbody> +</table> +</div> + +<div id="compat-mobile"> +<table class="compat-table"> + <tbody> + <tr> + <th>Feature</th> + <th>Android</th> + <th>Firefox Mobile (Gecko)</th> + <th>IE Mobile</th> + <th>Opera Mobile</th> + <th>Safari Mobile</th> + </tr> + <tr> + <td>Basic support (on {{domxref("Element")}})</td> + <td>{{ CompatVersionUnknown() }}</td> + <td>{{CompatGeckoMobile("1.9.1")}}</td> + <td>{{ CompatVersionUnknown() }}</td> + <td>{{ CompatVersionUnknown() }}</td> + <td>{{ CompatVersionUnknown() }}</td> + </tr> + <tr> + <td>Support on {{domxref("Document")}} and {{domxref("DocumentFragment")}} {{experimental_inline}}</td> + <td>{{CompatVersionUnknown}}</td> + <td>{{CompatGeckoMobile("25.0")}}</td> + <td>{{CompatNo}}</td> + <td>16.0</td> + <td>{{CompatNo}}</td> + </tr> + </tbody> +</table> +</div> + + + +<h2 id="Так_же_смотрите">Так же смотрите</h2> + +<ul> + <li>The {{domxref("ParentNode")}} and {{domxref("ChildNode")}} pure interfaces.</li> + <li> + <div class="syntaxbox">Object types implementing this pure interface: {{domxref("Document")}}, {{domxref("Element")}}, and {{domxref("DocumentFragment")}}.</div> + </li> +</ul> |