Node：normalize() 方法

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

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Node 接口的 normalize() 方法将指定的节点及其所有子树转化为规范化形式。在规范化子树中，子树上的文本节点都不为空，且没有相邻的文本节点。

语法

js
normalize()

参数

无。

返回值

无。

示例

html
<output id="result"></output>
js
const wrapper = document.createElement("div");

wrapper.appendChild(document.createTextNode("第 1 部分"));
wrapper.appendChild(document.createTextNode("第 2 部分"));

let node = wrapper.firstChild;
let result = "规范化之前：<br/>";
while (node) {
  result += ` ${node.nodeName}：${node.nodeValue}<br/>`;
  node = node.nextSibling;
}

wrapper.normalize();

node = wrapper.firstChild;
result += "<br/><br/>规范化之后：<br/>";
while (node) {
  result += ` ${node.nodeName}：${node.nodeValue}<br/>`;
  node = node.nextSibling;
}

const output = document.getElementById("result");
output.innerHTML = result;

规范

Specification
DOM
# ref-for-dom-node-normalize①

浏览器兼容性

参见