setAttributeNode()
XML DOM setAttributeNode() metodi
❮ Element obyekti
Misol
Quyidagi kod fragmenti "books.xml" faylini xmlDoc’ga yuklaydi va barcha <book> elementlariga "edition" atributini qo‘shadi:
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, y, z, i, newatt, xmlDoc, txt;
xmlDoc = xml.responseXML;
txt = "";
x = xmlDoc.getElementsByTagName('book');
for (i = 0; i < x.length; i++) {
newatt = xmlDoc.createAttribute("edition");
newatt.value = "first";
x[i].setAttributeNode(newatt);
}
// Output all "edition" attribute values
for (i = 0; i < x.length; i++) {
txt += "Edition: " + x[i].getAttribute("edition") + "<br>";
}
document.getElementById("demo").innerHTML = txt;
}
Natija:
Edition: first
Edition: first
Edition: first
Edition: first
O‘zingiz sinab ko‘ring »
Ta’rif va qo‘llanilishi
setAttributeNode() metodi yangi atribut tugunini qo‘shadi.
Agar elementda shu nomli atribut allaqachon mavjud bo‘lsa, u yangisi bilan almashtiriladi. Agar yangi atribut mavjud atributni almashtirsa, almashtirilgan atribut tuguni qaytariladi, aks holda null qaytariladi.
Sintaksis
elementNode.setAttributeNode(att_node)| Parametr | Tavsif |
|---|---|
| att_node | Majburiy. O‘rnatiladigan atribut tugunini belgilaydi |
❮ Element obyekti
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