Javascript - How to use ajax as global function, Ajax global function

How to use ajax as global function

We often use jquery ajax functions in our web projects. If we can make this ajax function as global one and pass only parameters to that function we can save lot of time. Have a look at this code,

 
<script src='http://ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js'></script>
<script type='text/javscript'>
 //Global method for making ajax-request
 function make_request(qdata){
 $.ajax({
 type : 'GET',
 url : "http://mysite/handler.php",
 cache : false,
 data : qdata,
 dataType : "json",
 
 success : function(jresult){
 process_data(jresult,qdata.q);
 },
 
 error : function(XMLHttpRequest, textStatus, errorThrown) { alert(errorThrown); }
 });
 
}
 
 function process_data(result,query){
 if(result.process=='error'){
 alert(result.errmsg);
 return;
 }
 
 if(query=='auth')
 alert('Your login successfull');

 }
 
 //parameter that has to be sent to the server
 var qvar={ "ema" : "guna","pass" : "mypass", "q" : "auth" }; 

 //make an ajax request
 make_request(qvar);
 
</script>

if you need to make another ajax call with different parameters, you can just do:

 //parameter that has to be sent to the server
 var qvar={ "param1" : "value","param2" : "value", "q" : "test" }; 

 //make an ajax request
 make_request(qvar);

In the above example we are sending some values to "handler.php". This function always expects a json object as output from handler.php. handler.php should be coded similar to this one:
Incase the requested process is failed,

 $result=array("process"=>"error","errmsg"=>"login failed");
 echo json_encode($result);

When requested process success,

 $result=array("process"=>"success");
 echo json_encode($result);

The topic on Javascript - How to use ajax as global function is posted by - Math

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