jQuery ajax-getJSON()

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This jQuery method is used to fetch the content of a server json file by using an AJAX HTTP GET request.

Related Topics:

jQuery filter

jQuery not

jQuery ajax-getJSON

Syntax:

$(selector).getJSON(url,data,success(data,status,xhr));

Parameter description:

url: This parameter represents the path of the server json file which data to be fetched by this method. It is mandatory.
data: This parameter represents the data to be send to server file. it is an optional parameter.
success(data,status,xhr): This parameter represents a user defined function which run after the success of the given method. It is also optional and has some additional parameters:

1 data: This parameter contains the data returned from the server.

2 Status: This parameter contains a string containing request status ("success", "notmodified", "error", "timeout", or "parsererror").

3 xhr: This parameter contains the XMLHttpRequest object.

Example:

In this example we display the content of a server JSON file into div element.

Step 1 Create a sample JSON file Json_data.json

json_data.json

{
"site" : "Coding Tag",
"url" : "https://www.codingtag.com", 
"Current_topic" : "jQuery",
"Tutorial" : "getJSON() mehtod"
}

Step 2 Paste the below code into your file to fetch the content of above file.

<html>
 <head>
 <title> jQuery Example </title>
 <script type = "text/javascript"
        src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js">
      </script>
<style>
div{
background:pink;
font-weight: 700;
padding:5px;
margin:5px;
font-size:16px;
}
h3{
background:yellow;
padding:5px;
margin:5px;
}
button{
background:green;
padding:10px;
color:white;
border:1px solid green;
}
</style>
<script>
$(document).ready(function(){
 $("button").click(function(){

     $.getJSON(
	 "json_data.json",
	 function(result){
	 $str= "<p>Website name is:" +result.site+
	 "  <br>Website URL is:" +result.url+
	 "  <br>Current topic is:" +result.Current_topic+
	 "  <br>You are learing the tutorial :"
	 +result.Tutorial+
	 "</p>";
     $("#res").html($str);
	});

});
});
</script>
 </head>
 <body>
<h2> jQuery getJSON() Method Example </h2>
<div id="res">
Resultant JSON data will be show here....
</div>
<button> Click Me! </button>
 </body>
</html>