Kwallon kwanan kwanan XML DOM firstChild:

Node 对象参考手册 tashi

Kira da kama:

firstChild na kiyashin kwallon kwanan kwanan na a cikin node na farko na cikin node.

Yanayin:

nodeObject.firstChild

Tuntuba da rarrabawar:

Rarrabawar:Internet Explorer yana gano kwanan kwanan na cikin node da yana ciki, kuma Mozilla ba. Kuma, a cikin wasan da zai a gano, a zai gano nau'in farkon yana cikin node.

Fannin node na a cikin na 1, kuma bai gano na farkon yana cikin node na fannin ba, yana iya samu zuwa kwanan kwanan, kuma yana nuna bai a cikin node na fannin ba. A yana samu za a iya gano kwanan kwanan zuwa farkon fannin na cikin node yana ciki. Ta hanyar wannan sabon, a zai iya samu a Internet Explorer da Mozilla koyaushe na a cikin burin.

提示: tashi如需更多有关 IE 与 Mozilla 浏览器之间 XML DOM 的差异的内容,请访问我们的 tashi DOM 浏览器 tashi 章节。 tashi

实例 tashi

在所有的例子中,我们将使用 XML 文件 tashi books.xml tashi,以及 JavaScript 函数 tashi loadXMLDoc() tashi。 tashi

下面的代码可显示出文档的首个子节点的节点名称和节点类型: tashi

//check if the first node is an element node tashi
function get_firstchild(n) tashi
{ tashi
var x= tashin.firstChild tashi; tashi
while (x.nodeType!=1) tashi
{ tashi
x=x.nextSibling; tashi
}
return x; tashi
}
xmlDoc=loadXMLDoc("books.xml"); tashi
var x=get_firstchild(xmlDoc); tashi
document.write("Nodename: " + x.nodeName); tashi
document.write(" (nodetype: " + x.nodeType); tashi

输出: tashi

Nodename: bookstore (nodetype: 1) tashi

Node 对象参考手册 tashi