JAVASCRIPT

Ajax code

    $.ajax({    
        type: "POST",
        url: "../controller/jobs/php/post_job.php",   
        data:{
          type: 300,
        },
        success: function(data){ 
            $('#job_category').html(data);
        }
    });

ajax code

 $.ajax({
    type: 'GET',
    dataType: 'json',
    url: url,
    timeout: 5000,
    success: function(data, textStatus ){
       alert('request successful');
    },
    fail: function(xhr, textStatus, errorThrown){
       alert('request failed');
    }
  });