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author | Peter Bengtsson <mail@peterbe.com> | 2020-12-08 14:40:17 -0500 |
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committer | Peter Bengtsson <mail@peterbe.com> | 2020-12-08 14:40:17 -0500 |
commit | 33058f2b292b3a581333bdfb21b8f671898c5060 (patch) | |
tree | 51c3e392513ec574331b2d3f85c394445ea803c6 /files/zh-cn/web/api/node/normalize | |
parent | 8b66d724f7caf0157093fb09cfec8fbd0c6ad50a (diff) | |
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diff --git a/files/zh-cn/web/api/node/normalize/index.html b/files/zh-cn/web/api/node/normalize/index.html new file mode 100644 index 0000000000..ecdd1ac0c0 --- /dev/null +++ b/files/zh-cn/web/api/node/normalize/index.html @@ -0,0 +1,73 @@ +--- +title: Node.normalize() +slug: Web/API/Node/normalize +tags: + - API + - Method + - Node +translation_of: Web/API/Node/normalize +--- +<div>{{APIRef("DOM")}}</div> + +<p><code>Node.normalize()</code> 方法将当前节点和它的后代节点”规范化“(normalized)。在一个"规范化"后的DOM树中,不存在一个空的文本节点,或者两个相邻的文本节点。</p> + +<p>注1:“空的文本节点”并不包括空白字符(空格,换行等)构成的文本节点。</p> + +<p>注2:两个以上相邻文本节点的产生原因包括:</p> + +<ol> + <li>通过脚本调用有关的DOM接口进行了文本节点的插入和分割等。</li> + <li>HTML中超长的文本节点会被浏览器自动分割为多个相邻文本节点。</li> +</ol> + +<h2 id="Syntax" name="Syntax">语法</h2> + +<pre class="syntaxbox"><em>element</em>.normalize(); +</pre> + +<h2 id="Example" name="Example">例子</h2> + +<pre class="brush:js">var wrapper = document.createElement("div"); + +wrapper.appendChild(document.createTextNode("Part 1 ")); +wrapper.appendChild(document.createTextNode("Part 2 ")); + +// 这时(规范化之前),wrapper.childNodes.length === 2 +// wrapper.childNodes[0].textContent === "Part 1 " +// wrapper.childNodes[1].textContent === "Part 2 " + +wrapper.normalize(); +// 现在(规范化之后), wrapper.childNodes.length === 1 +// wrapper.childNodes[0].textContent === "Part 1 Part 2" +</pre> + +<h2 id="Specification" name="Specification">规范</h2> + +<table class="standard-table"> + <thead> + <tr> + <th scope="col">Specification</th> + <th scope="col">Status</th> + <th scope="col">Comment</th> + </tr> + </thead> + <tbody> + <tr> + <td>{{SpecName("DOM WHATWG", "#dom-node-normalize", "Node: normalize")}}</td> + <td>{{Spec2("DOM WHATWG")}}</td> + <td></td> + </tr> + </tbody> +</table> + +<h2 id="Browser_compatibility">Browser compatibility</h2> + + + +<p>{{Compat("api.Node.normalize")}}</p> + +<h2 id="See_also">See also</h2> + +<ul> + <li>{{domxref("Text.splitText()")}}</li> +</ul> |