ƙararruwa XML DOM hasAttribute()

taƙillin da kuma amfani

idannan, bai kaiyawa ɗan ɗauka ɗin na ɗauka ɗin an ƙirƙira an gani. hasAttribute() ƙararruwa a ƙarshen tana ƙaɗanin, amma tana ƙarshen yadda a cikin ƙararruwa.

kalaman

hasAttribute(name)

shafi

kaɗanin na yau "books.xml" a kaiyawa xmlDoc, kuma a baɗa ɗin ɗauka ɗaya <book> ce gaba <category> akwai koɗar?}

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.hasAttribute("category");
}

亲自试一试