AJAX JSON Example

We can get JSON data by AJAX code. AJAX provides facility to get response asynchronously. It doesn't reload the page and saves bandwidth.

Let's see a simple example of getting JSON data using AJAX code.

<html>
<head>
<meta content="text/html; charset=utf-8">
<title>AJAX JSON by Javatpoint</title>
<script type="application/javascript">
function load()
{
var url = "http://date.jsontest.com/";//use any url that have json data
var request;
if(window.XMLHttpRequest){
request=new XMLHttpRequest();//for Chrome, mozilla etc
}
else if(window.ActiveXObject){
request=new ActiveXObject("Microsoft.XMLHTTP");//for IE only
}
request.onreadystatechange = function(){
if (request.readyState == 4 )
{
var jsonObj = JSON.parse(request.responseText);//JSON.parse() returns JSON object
document.getElementById("date").innerHTML = jsonObj.date;
document.getElementById("time").innerHTML = jsonObj.time;
}
}
request.open("GET", url, true);
request.send();
}
</script>
</head>
<body>
Date: <span id="date"></span><br/>
Time: <span id="time"></span><br/>
<button type="button" onclick="load()">Load Information</button>
</body>
</html>

Output:

Date: 
Time:

Friday, 25 September 2015