How to use DOM Element GetElementByTagNameNS in JavaScript
In this article I am going to explain about DOM Element getElementByTagNameNS() method in JavaScript.
JavaScript DOM Element getElementByTagNameNS() Method
JavaScript getElementByTagNameNS() method use for get number of child element with specified by tag name and specified namespace as a node List object.
Syntax
element.getElementByTagNameNS(tagname name)
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Example
<html>
<head>
<script type="text/javascript">
function myfun() {
var http;
if (window.XMLHttpRequest) { Xm = new XMLHttpRequest(); }
else { Xm = new ActiveXObject("Microsoft.XMLHTTP"); }
Xm.open("GET", "myfile.xml", false);
Xm.send();
var xmlDoc = Xm.responseXML;
var x = xmlDoc.getElementsByTagNameNS("https://dotnetheaven.com/NS", "book")[0];
var y = x.getElementsByTagNameNS("https://dotnetheaven.com/NS", "cost")[0];
var z = y.childNodes[0].nodeValue;
document.getElementById("tst").innerHTML = z;
};
</script>
</head>
<body>
<p id="tst" style="color: Blue">
click button for get value of element with specefied url</p>
<button onclick="myfun()">
click me</button>
</body>
</html>
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Output
Before click
After click
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