hasChildNodes()
XML DOM hasChildNodes() metodi
❮ Element obyekti
Misol
Quyidagi kod fragmenti "books.xml" faylini xmlDoc’ga yuklaydi va birinchi <book> elementida biror bola tugun bor-yo‘qligini tekshiradi:
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('book')[0];
document.getElementById("demo").innerHTML =
x.hasChildNodes();
}
Yuqoridagi kodning natijasi quyidagicha bo‘ladi:
true
O‘zingiz sinab ko‘ring »
Ta’rif va qo‘llanilishi
Agar joriy element tugunida bola tugunlar bo‘lsa, hasChildNodes() metodi TRUE, aks holda FALSE qaytaradi.
Sintaksis
elementNode.hasChildNodes()❮ Element obyekti
W3Schools Pathfinder
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