How do I run ajax request in background continuously?

$(function(){
  getAjaxRequest();
});

function getAjaxRequest(){
  $.ajax({
    url:"someurl.php",
    data:{data:"data"},
    success:function(result){
       //result retrieval queries
       //and
       setTimeout(getAjaxRequest,1000); //call the same function every 1s.
    },
    error:function(err){
       //error handler
    } 
  });
}