Node.isDefaultNamespace

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since ⁨2015年7月⁩.

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概述

isDefaultNamespace 接受一个命名空间 URI 作为参数，如果该命名空间是当前节点的默认命名空间，则返回true,否则返回false.

语法

result = node.isDefaultNamespace(namespaceURI)

result 为 true 或 false.
namespaceURI 为一个命名空间 URI.

例子

var XULNS = "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul";
var el = document.getElementsByTagNameNS(XULNS, 'textbox')[0];
alert(el.isDefaultNamespace(XULNS)); // true

规范

DOM Level 3 Core: isDefaultNamespace
Code snippets: isDefaultNamespace

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This page was last modified on ⁨2024年12月13日⁩ by MDN contributors.

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