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getJSON( url, [data], [callback] ) Method


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Description:

The jQuery.getJSON( url, [data], [callback] ) method loads JSON data from the server using a GET HTTP request.

The method returns XMLHttpRequest object.

Syntax:

Here is the simple syntax to use this method:

$.getJSON( url, [data], [callback] )

Parameters:

Here is the description of all the parameters used by this method:

  • url: A string containing the URL to which the request is sent

  • data:: This optional parameter represents key/value pairs that will be sent to the server.

  • callback:: This optional parameter represents a function to be executed whenever the data is loaded successfully.

Example:

Assuming we have following JSON content in /jquery/result.json file:

{
"name": "Zara Ali",
"age" : "67",
"sex": "female"
}

Following is a simple example a simple showing the usage of this method:

<html>
<head>
<title>the title</title>
   <script type="text/javascript" 
   src="/jquery/jquery-1.3.2.min.js"></script>
   <script type="text/javascript" language="javascript">
   $(document).ready(function() {
      $("#driver").click(function(event){
          $.getJSON('/jquery/result.json', function(jd) {
             $('#stage').html('<p> Name: ' + jd.name + '</p>');
             $('#stage').append('<p>Age : ' + jd.age+ '</p>');
             $('#stage').append('<p> Sex: ' + jd.sex+ '</p>');
          });
      });
   });
   </script>
</head>
<body>
   <p>Click on the button to load result.html file:</p>
   <div id="stage" style="background-color:blue;">
          STAGE
   </div>
   <input type="button" id="driver" value="Load Data" />
</body>
</html>

To understand it in better way you can Try it yourself.



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