Maelezo ya kawaida ya XML DOM length maelezo

Maelezo na matumizi

length Maelezo ya kawaida ya kina inatoa namba ya kina katika orodha ya kina.

Mafano

nodelistObject.length

Mifano

Mfano 1

Inayotumiwa kwa kualisha "books.xml" kwenye xmlDoc na kupata uainishaji wa kina <title>:

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");
    document.getElementById("demo").innerHTML =
    "Namba ya kina ya title: " + x.length;
}

Jifunze kwa uharibifu

Mfano 2

mchakata kipakana kwa kina kina:

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 x, i, xmlDoc, txt;
    xmlDoc = xml.responseXML;
    txt = "";
    x = xmlDoc.getElementsByTagName('title');
    for (i = 0 ; i <x.length; i++) {
        txt += x[i].childNodes[0].nodeValue + "<br>";
    }
    document.getElementById("demo").innerHTML = txt;
}

Jifunze kwa uharibifu