兄弟节点 疑问的
<!DOCTYPE HTML> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>nextSibling</title> </head> <body> <ul id="u1"> <li id="a">javascript</li> <li id="b">jquery</li> <li id="c">html</li> </ul> <ul id="u2"> <li id="d">css3</li> <li id="e">php</li> <li id="f">java</li> </ul> <script type="text/javascript"> function get_nextSibling(n){ var x=n.nextSibling; while (x && x.nodeType!=1){ x=x.nextSibling; } return x; } var x=document.getElementsByTagName("li")[0]; document.write(x.nodeName); document.write(" = "); document.write(x.innerHTML); var y=get_nextSibling(x); if(y!=null){ document.write("<br />nextsibling: "); document.write(y.nodeName); document.write(" = "); document.write(y.innerHTML); }else{ document.write("<br>已经是最后一个节点"); } </script> </body> </html>
注: 这里有一个判断:
x && x.nodeType!=1 条件为什么是这样呢?
找兄弟节点
DOM.nextSibling = function () {
var a = [];
var n = ele.nextSibling;
while (n) {
if (n.nodeType === 1) {
a.push(n)
}
n = n.nextSibling;
}
return a;
}