<script type="text/javascript">
//<![CDATA[
onload=function(){
var node1;
if (document.layers){
node1 = document.layers["Layer1"].childNodes;
} else if (document.all){
node1 = document.all["Layer1"].childNodes;
} else if (document.getElementById){
node1 = document.getElementById("Layer1").childNodes;
}
var cnt=0;
for (var i=0; i<node1.length; i++){
//alert(node1[i].nodeType);
node1[i].nodeType==3?"":++cnt;
}
alert(cnt)
//alert(node1.length);
}
//]]>
</script>
<body id="www.never-online.net">
<div id="Layer1">
<div id="Layer1_1" ></div>
<div id="Layer1_2" ></div>
</div>
</body>
//<![CDATA[
onload=function(){
var node1;
if (document.layers){
node1 = document.layers["Layer1"].childNodes;
} else if (document.all){
node1 = document.all["Layer1"].childNodes;
} else if (document.getElementById){
node1 = document.getElementById("Layer1").childNodes;
}
var cnt=0;
for (var i=0; i<node1.length; i++){
//alert(node1[i].nodeType);
node1[i].nodeType==3?"":++cnt;
}
alert(cnt)
//alert(node1.length);
}
//]]>
</script>
<body id="www.never-online.net">
<div id="Layer1">
<div id="Layer1_1" ></div>
<div id="Layer1_2" ></div>
</div>
</body>
cleanWhitespace = function(node){
for (var x=0; x<node.childNodes.length; x++) {
var child = node.childNodes[x];
//if it's a whitespace text node
if ((child.nodeType == 3) && (!notspace.test(child.nodeValue))) {
node.removeChild(node.childNodes[x]);
//node.childNodes[x].removeNode();
x--;
}
//elements can have text child nodes of their own
if(child.nodeType == 1) {
cleanWhitespace(child);
}
}
}
onload=function(){
var node1;
if (document.layers){
node1 = document.layers["Layer1"].childNodes;
} else if (document.all){
node1 = document.all["Layer1"].childNodes;
} else if (document.getElementById){
node1 = document.getElementById("Layer1").childNodes;
}
var cnt=0;
cleanWhitespace(document.getElementById("Layer1"))
alert(node1.length);
}
//]]>
</script>
像BlueDestiny 这样写代码(node1[i].nodeType==3?"":++cnt;)也可以检测出来
谢谢楼上的两位
ATTRIBUTE_NODE = 2;
TEXT_NODE = 3;
CDATA_SECTION_NODE = 4;
ENTITY_REFERENCE_NODE = 5;
ENTITY_NODE = 6;
PROCESSING_INSTRUCTION_NODE = 7;
COMMENT_NODE = 8;
DOCUMENT_NODE = 9;
DOCUMENT_TYPE_NODE = 10;
DOCUMENT_FRAGMENT_NODE = 11;
NOTATION_NODE = 12;