counter style ajax transactions

counter.js

var endpoints   = ['/data/step1', '/data/step2', '/data/step3'];
var run_cnt     = 0;
var success_cnt = 0;

function final_action(){
  console.log('completed!');
}

function fail_action(){
  console.log("something went wrong!");
}

$.each(endpoints, function(index, url){
  $.get(url, function(response){
    // keep track of requests made
    run_cnt++;
    // keep track of successful requests
    success_cnt++;
    // this sucks
    if(success_cnt === endpoints.length) {
      final_action();
    } else if (run_cnt === endpoints.lenght)  {
      fail_action();
    }
  }, function(){
    run_cnt++;
    // duplicate logic
    if (run_cnt === endpoints.lenght)  {
      fail_action();
    }
    // if our call errors we don't update the counter
  })
})