XML DOM substringData () method
Comment objects Definition and Usage
substringData () method to get a string from the comment node.
grammar
substringData(start,length)
| 参数 | 描述 |
|---|---|
| start | 必需。规定从何处开始提取字符。开始值以 0 开始。 |
| length | 必需。规定提取多少字符。 |
Examples
The following code fragment uses loadXMLDoc () to " books_comment.xml " into xmlDoc and obtain "(Hardcover)" string from the first annotation element:
Examples
xmlDoc=loadXMLDoc("books_comment.xml");
x=xmlDoc.getElementsByTagName("book")[0].childNodes;
for (i=0;i<x.length;i++)
{
if (x[i].nodeType==8)
{
//Process only comment nodes
y=x[i].substringData(33,11);
document.write(y);
document.write("
");
}
}
x=xmlDoc.getElementsByTagName("book")[0].childNodes;
for (i=0;i<x.length;i++)
{
if (x[i].nodeType==8)
{
//Process only comment nodes
y=x[i].substringData(33,11);
document.write(y);
document.write("
");
}
}
Output:
(Hardcover)
try it"
In the example above, we use some loops and if statements to execute only the processing nodes for comment. Node type comment node is eight.
Comment objects