How to use DOM Element hasAttribute in JavaScript
In this article I am going to explain about DOM Element hasAttribute() method in JavaScript.
JavaScript DOM Element hasAttributeNS() Method
JavaScript hasAttribute() method use for check specified attribute exists or not exists in specified namespace . If attribute exists then it will return true other wise false.
Syntax
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element.hasAttributeNS(attribute name)
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Example
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<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", "cost")[0];
var y = x.hasAttributeNS("https://dotnetheaven.com/NS", "name");
document.getElementById("tst").innerHTML = y;
};
</script>
</head>
<body>
<p id="tst">
click button for check exist or not exist</p>
<button onclick="myfun()">
click me</button>
</body>
</html>
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Output
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