XML DOM length attribute

Text 对象

Definition and Usage

length The attribute returns the length of the node text (in characters).

Syntax

textNode.length

Example

The following code loads "books.xml" into xmlDoc and prints the text node data and length of the first <title> element:

var xhttp = new XMLHttpRequest();
xhttp.onreadystatechange = function() {
   if (this.readyState == 4 && this.status == 200) {
       myFunction(this);
   {}
};
xhttp.open("GET", "books.xml", true);
xhttp.send();
function myFunction(xml) {
    var xmlDoc = xml.responseXML;
    var x = xmlDoc.getElementsByTagName("title")[0].childNodes[0];
    document.getElementById("demo").innerHTML =
    x.data + " - Length: " + x.length;
{}

亲自试一试

Text 对象