From 074785cea106179cb3305637055ab0a009ca74f2 Mon Sep 17 00:00:00 2001 From: Peter Bengtsson Date: Tue, 8 Dec 2020 14:42:52 -0500 Subject: initial commit --- .../web/api/parentnode/lastelementchild/index.html | 161 +++++++++++++++++++++ 1 file changed, 161 insertions(+) create mode 100644 files/ru/web/api/parentnode/lastelementchild/index.html (limited to 'files/ru/web/api/parentnode/lastelementchild') 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 +--- +

{{ APIRef("DOM") }}

+ +

Свойство ParentNode.lastElementChild только для чтения. Возвращает последний дочерний элемент объекта или null если нет дочерних элементов.

+ +
+

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, lastElementChild moved to {{domxref("ParentNode")}}. This is a fairly technical change that shouldn't affect compatibility.

+
+ +

Синтаксис

+ +
var element = node.lastElementChild;
+ +

Пример

+ +
<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>
+
+ +

Polyfill for IE8, IE9 and Safari

+ +
// 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);
+
+ +

Спецификация

+ + + + + + + + + + + + + + + + + + + +
SpecificationStatusComment
{{SpecName('DOM WHATWG', '#dom-parentnode-lastelementchild', 'ParentNode.lastElementChild')}}{{Spec2('DOM WHATWG')}}Splitted the ElementTraversal interface in {{domxref("ChildNode")}} and ParentNode. This method is now defined on the latter.
+ The {{domxref("Document")}} and {{domxref("DocumentFragment")}} implemented the new interfaces.
{{SpecName('Element Traversal', '#attribute-lastElementChild', 'ElementTraversal.lastElementChild')}}{{Spec2('Element Traversal')}}Added its initial definition to the ElementTraversal pure interface and use it on {{domxref("Element")}}.
+ +

Совместимость с браузерами

+ +

{{ CompatibilityTable() }}

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+ + + + + + + + + + + + + + + + + + + + + + + + + + + +
FeatureChromeFirefox (Gecko)Internet ExplorerOperaSafari
Basic support (on {{domxref("Element")}})1.0{{CompatGeckoDesktop("1.9.1")}}9.010.04.0
Support on {{domxref("Document")}} and {{domxref("DocumentFragment")}} {{experimental_inline}}29.0{{CompatGeckoDesktop("25.0")}}{{CompatNo}}16.0{{CompatNo}}
+
+ +
+ + + + + + + + + + + + + + + + + + + + + + + + + + + +
FeatureAndroidFirefox Mobile (Gecko)IE MobileOpera MobileSafari Mobile
Basic support (on {{domxref("Element")}}){{ CompatVersionUnknown() }}{{CompatGeckoMobile("1.9.1")}}{{ CompatVersionUnknown() }}{{ CompatVersionUnknown() }}{{ CompatVersionUnknown() }}
Support on {{domxref("Document")}} and {{domxref("DocumentFragment")}} {{experimental_inline}}{{CompatVersionUnknown}}{{CompatGeckoMobile("25.0")}}{{CompatNo}}16.0{{CompatNo}}
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+ + + +

Так же смотрите

+ + -- cgit v1.2.3-54-g00ecf