ajax-request.js

$(function() {
  function LoadPersons(data) {
    // do something with data
  }
  
  $.ajax({
    type: 'POST',
    url: url,
    data: JSON.stringify(parameters),
    contentType: 'application/json;',
    dataType: 'json',         
    success:function(result) { 
      // do something with persons (data)             
      // e.g.
      LoadPersons(data);         
    }     
  }); 
});