AJAX - Server Response
Server Response Properties
Property | Description |
---|---|
responseText | get the response data as a string |
responseXML | get the response data as XML data |
The responseText Property
The responseText
property returns the server response as a
JavaScript string, and you can use it accordingly:
The responseXML Property
The XMLHttpRequest object has an in-built XML parser.
The responseXML
property returns the server response as an XML DOM object.
Using this property you can parse the response as an XML DOM object:
Example
Request the file cd_catalog.xml and parse the response:
const xmlDoc = xhttp.responseXML;
const x = xmlDoc.getElementsByTagName("ARTIST");
let txt = "";
for (let i = 0; i < x.length; i++) {
txt += x[i].childNodes[0].nodeValue + "<br>";
}
document.getElementById("demo").innerHTML = txt;
xhttp.open("GET",
"cd_catalog.xml");
xhttp.send();
Try it Yourself »
Server Response Methods
Method | Description |
---|---|
getResponseHeader() | Returns specific header information from the server resource |
getAllResponseHeaders() | Returns all the header information from the server resource |
The getAllResponseHeaders() Method
The getAllResponseHeaders()
method returns all header information from the server response.
Example
const xhttp = new XMLHttpRequest();
xhttp.onload = function() {
document.getElementById("demo").innerHTML =
this.getAllResponseHeaders();
}
xhttp.open("GET", "ajax_info.txt");
xhttp.send();
Try it Yourself »
The getResponseHeader() Method
The getResponseHeader()
method returns specific header information from the server response.
Example
const xhttp = new XMLHttpRequest();
xhttp.onload = function() {
document.getElementById("demo").innerHTML =
this.getResponseHeader("Last-Modified");
}
xhttp.open("GET", "ajax_info.txt");
xhttp.send();
Try it Yourself »