Element.getElementsByTagNameNS()

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Element.getElementsByTagNameNS() method returns a live HTMLCollection of elements with the given tag name belonging to the given namespace. It is similar to Document.getElementsByTagNameNS , except that its search is restricted to descendants of the specified element.

句法

elements = element.getElementsByTagNameNS(namespaceURI, localName)

元素 是实时 HTMLCollection of found elements in the order they appear in the tree.
element is the element from where the search should start. Note that only the descendants of this element are included in the search, not the node itself.
namespaceURI is the namespace URI of elements to look for (see Element.namespaceURI and Attr.namespaceURI ). For example, if you need to look for XHTML elements, use the XHTML namespace URI, http://www.w3.org/1999/xhtml .
localName is either the local name of elements to look for or the special value "*" , which matches all elements (see Element.localName and Attr.localName ).

范例

// check the alignment on a number of cells in a table in an XHTML document.
var table = document.getElementById("forecast-table");
var cells = table.getElementsByTagNameNS("http://www.w3.org/1999/xhtml", "td");
for (var i = 0; i < cells.length; i++) {
    var axis = cells[i].getAttribute("axis");
    if (axis == "year") {
        // grab the data
    }
}

规范

规范	状态	注释
DOM The definition of 'Element.getElementsByTagNameNS()' in that specification.	实时标准	Changed the return value from `NodeList` to `HTMLCollection` .
DOM (文档对象模型) 3 级核心规范 The definition of 'Element.getElementsByTagNameNS()' in that specification.	过时	无变化自 DOM (文档对象模型) 级别 2 核心规范 .
DOM (文档对象模型) 级别 2 核心规范 The definition of 'Element.getElementsByTagNameNS()' 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
`getElementsByTagNameNS`	Chrome 1 1 Initially, this method was returning a `NodeList` ; it was then changed to reflect the spec change.	Edge 12	Firefox Yes Yes 行为在 `element.getElementsByTagNameNS` changed between Firefox 3.5 and Firefox 3.6. In Firefox 3.5 and before, this function would automatically case-fold any queries so that a search for "foo" would match "Foo" or "foo". In Firefox 3.6 and later this function is now case-sensitive so that a query for "foo" will only match "foo" and not "Foo". For more background on this, please see the comment from Henri Sivonen about the change . You can also look at the relevant part of the standard, which states which parts of the API are case-sensitive and which parts aren't. Prior to Firefox 19, this method was returning a `NodeList` ; it was then changed to reflects the spec change.	IE 5.5	Opera Yes Yes Initially, this method was returning a `NodeList` ; it was then changed to reflect the spec change.	Safari 6 6 Initially, this method was returning a `NodeList` ; it was then changed to reflect the spec change.	WebView Android Yes	Chrome Android Yes	Firefox Android Yes Yes 行为在 `element.getElementsByTagNameNS` changed between Firefox 3.5 and Firefox 3.6. In Firefox 3.5 and before, this function would automatically case-fold any queries so that a search for "foo" would match "Foo" or "foo". In Firefox 3.6 and later this function is now case-sensitive so that a query for "foo" will only match "foo" and not "Foo". For more background on this, please see the comment from Henri Sivonen about the change . You can also look at the relevant part of the standard, which states which parts of the API are case-sensitive and which parts aren't. Prior to Firefox 19, this method was returning a `NodeList` ; it was then changed to reflects the spec change.	Opera Android Yes	Safari iOS Yes	Samsung Internet Android Yes
getElementsByTagNameNS(*)	Chrome 1	Edge 12	Firefox Yes	IE 6	Opera Yes	Safari Yes	WebView Android Yes	Chrome Android 18	Firefox Android Yes Yes 行为在 `element.getElementsByTagNameNS` changed between Firefox 3.5 and Firefox 3.6. In Firefox 3.5 and before, this function would automatically case-fold any queries so that a search for "foo" would match "Foo" or "foo". In Firefox 3.6 and later this function is now case-sensitive so that a query for "foo" will only match "foo" and not "Foo". For more background on this, please see the comment from Henri Sivonen about the change . You can also look at the relevant part of the standard, which states which parts of the API are case-sensitive and which parts aren't. Prior to Firefox 19, this method was returning a `NodeList` ; it was then changed to reflects the spec change.	Opera Android Yes	Safari iOS Yes	Samsung Internet Android 1.0

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元数据

最后修改： 2019 年 3 月 23 日

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