Question

可能重复：
How to iterate through a DOM tree?

你能告诉我如何在javascript中编写以下伪代码吗？

for each child of <body>:
  if (tag.haschildren):
    for each tag.child:
       do some action;

谢谢

Answer 1

var els = document.getElementsByTagName("*");
for (var i = 0, ii = els.length; i < ii; i++) {
  for (var j = 0, jj = els[i].childNodes.length; j < jj; j++) {
    action(els[i].childNodes[j]);
  }  
}

在javascript中遍历网页

1 个答案: