Node.isSameNode()

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句法
范例
规范
浏览器兼容性
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isSameNode() 方法对于 节点 objects tests whether two nodes are the same (that is, whether they reference the same object).

句法

const isSameNode = node.isSameNode(otherNode)

参数

otherNode 节点 to test against.

范例

In this example, we create three <div> blocks. The first and third have the same contents and attributes, while the second is different. Then we run some JavaScript to compare the nodes using isSameNode() and output the results.

HTML

<div>This is the first element.</div>
<div>This is the second element.</div>
<div>This is the first element.</div>
<p id="output"></p>

CSS

#output {
  width: 440px;
  border: 2px solid black;
  border-radius: 5px;
  padding: 10px;
  margin-top: 20px;
  display: block;
}

JavaScript

let output = document.getElementById("output");
let divList  = document.getElementsByTagName("div");
output.innerHTML += "div 0 same as div 0: " + divList[0].isSameNode(divList[0]) + "<br/>";
output.innerHTML += "div 0 same as div 1: " + divList[0].isSameNode(divList[1]) + "<br/>";
output.innerHTML += "div 0 same as div 2: " + divList[0].isSameNode(divList[2]) + "<br/>";

结果

规范

规范	状态	注释
DOM The definition of 'Node: isSameNode' in that specification.	实时标准	No change (was for a long time removed from it).
DOM (文档对象模型) 3 级核心规范 The definition of 'Node.isSameNode()' in that specification.	过时	初始定义

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`isSameNode`	Chrome Yes	Edge 12	Firefox 48 48 不支持 1 — 10	IE ?	Opera Yes	Safari Yes	WebView Android Yes	Chrome Android Yes	Firefox Android 48 48 不支持 4 — 10	Opera Android Yes	Safari iOS Yes	Samsung Internet Android Yes

图例

完整支持
兼容性未知 ?

另请参阅

Node.isEqualNode()

元数据

最后修改： Jan 8, 2020

DOM (文档对象模型)
节点
特性
1. baseURI
2. baseURIObject
3. childNodes
4. firstChild
5. isConnected
6. lastChild
7. ~~localName~~
8. ~~namespaceURI~~
9. nextSibling
10. nodeName
11. ~~nodePrincipal~~
12. nodeType
13. nodeValue
14. outerText
15. ownerDocument
16. parentElement
17. parentNode
18. ~~prefix~~
19. previousSibling
20. ~~rootNode~~
21. textContent
方法
1. appendChild()
2. cloneNode()
3. compareDocumentPosition()
4. contains()
5. getRootNode()
6. ~~getUserData()~~
7. hasChildNodes()
8. insertBefore()
9. isDefaultNamespace()
10. isEqualNode()
11. isSameNode()
12. ~~isSupported()~~
13. lookupNamespaceURI()
14. lookupPrefix()
15. normalize()
16. removeChild()
17. replaceChild()
18. ~~setUserData()~~
继承：
1. EventTarget
DOM 相关页面

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句法

参数

范例

HTML

CSS

JavaScript

结果

规范

浏览器兼容性

图例

另请参阅

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