sync

sync coding

var page = 1,
    lastPage = 5000; // force sync, by incresing this counter

async.whilst(function () {
  return page <= lastPage;
},
function (next) {
    
   // BUSINESS LOGIC HERE
  // DON'T FORGET TO ADD page++ and next() into a callback
   
    page++;
    next();
  });
},
function (err) {
  // All things are done!
});