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Diffstat (limited to 'files/zh-tw/web/api/parentnode/children/index.html')
-rw-r--r-- | files/zh-tw/web/api/parentnode/children/index.html | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/files/zh-tw/web/api/parentnode/children/index.html b/files/zh-tw/web/api/parentnode/children/index.html new file mode 100644 index 0000000000..f9f6c76115 --- /dev/null +++ b/files/zh-tw/web/api/parentnode/children/index.html @@ -0,0 +1,152 @@ +--- +title: ParentNode.children +slug: Web/API/ParentNode/children +translation_of: Web/API/ParentNode/children +--- +<p>{{ APIRef("DOM") }}</p> + +<p><code><strong>Node.children</strong></code> 唯讀屬性會回傳一個 <code>Node</code> 之子{{domxref("Element","元素")}}的動態(live){{domxref("HTMLCollection")}}。</p> + +<h2 id="語法">語法</h2> + +<pre class="syntaxbox">var <em>children</em> = <em>node</em>.children;</pre> + +<p><code><em>children</em></code> 是一個 {{ domxref("HTMLCollection") }},為一個有順序性、由 <em><code>node</code></em> 中的 DOM 子元素所組成的集合。假如沒有子元素,則 <code><em>children</em></code> 內便不包含任何元素,且 <code>length</code> 為 <code>0</code>。</p> + +<h2 id="範例">範例</h2> + +<pre class="brush: js">var foo = document.getElementById('foo'); +for (var i = 0; i < foo.children.length; i++) { + console.log(foo.children[i].tagName); +} +</pre> + +<h2 id="Polyfill">Polyfill</h2> + +<pre class="brush: js">// Overwrites native 'children' prototype. +// Adds Document & DocumentFragment support for IE9 & Safari. +// Returns array instead of HTMLCollection. +;(function(constructor) { + if (constructor && + constructor.prototype && + constructor.prototype.children == null) { + Object.defineProperty(constructor.prototype, 'children', { + get: function() { + var i = 0, node, nodes = this.childNodes, children = []; + while (node = nodes[i++]) { + if (node.nodeType === 1) { + children.push(node); + } + } + return children; + } + }); + } +})(window.Node || window.Element); +</pre> + +<h2 id="規範">規範</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-children', 'ParentNode.children')}}</td> + <td>{{Spec2('DOM WHATWG')}}</td> + <td>Initial definition.</td> + </tr> + </tbody> +</table> + +<h2 id="瀏覽器相容性">瀏覽器相容性</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>Edge</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 [1]</td> + <td>38.0</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>{{CompatNo}}</td> + <td>16.0</td> + <td>{{CompatNo}}</td> + </tr> + <tr> + <td>Support on {{domxref("SVGElement")}}</td> + <td>{{CompatVersionUnknown}}</td> + <td>{{CompatVersionUnknown}}</td> + <td>{{CompatNo}}</td> + <td>{{CompatNo}}</td> + <td>{{CompatUnknown}}</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> + +<p>[1] Internet Explorer 6, 7 and 8 supported it, but erroneously includes {{domxref("Comment")}} nodes.</p> + +<h2 id="參見">參見</h2> + +<ul> + <li>The {{domxref("ParentNode")}} and {{domxref("ChildNode")}} interfaces.</li> + <li> + <div class="syntaxbox">Object types implementing this interface: {{domxref("Document")}}, {{domxref("Element")}}, and {{domxref("DocumentFragment")}}.</div> + </li> +</ul> |