JavaScript node.lookupNamespaceURI() Method
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JavaScript node.lookupNamespaceURI() Method
The node.lookupNamespaceURI() method accepts a prefix and returns the namespace URI associated with it on the given node, if found, and null if not.
Example
The XML file used in the example: game.xml.
HTML Online Editor
<!DOCTYPE html>
<html>
<body>
<p id="point"></p>
<script>
var x = document.getElementById("point");
var xhttp = new XMLHttpRequest();
xhttp.onreadystatechange = function(){
if(this.readyState == 4 && this.status == 200){
var xmlDoc = xhttp.responseXML;
var xmlNode = xmlDoc.getElementsByTagName("game")[0];
x.innerHTML = xmlNode.lookupNamespaceURI("f");
}
};
xhttp.open("GET", "/game.xml", true);
xhttp.send();
</script>
</body>
</html>
Syntax
node.lookupNamespaceURI(prefix)
Parameter Values
| Value | Type | Explanation |
|---|---|---|
| prefix | Required | A string that specifies prefix to find. |
Return Values
| Value | Explanation |
|---|---|
| String | Returns the namespace URI associated with it on the given node. |
| null | If there is no namespace URI associated with it on the given node. |
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