async.filter - An Example of an Asynchronous filter

async-filter.js

  
// Assumes you've included the async library
var async = window.async
  , userInput = $('input').val() // <== just an example, could use ng-model too in angular
  , originalList = getTheHugeDataSetFromSomewhere()
  , $scope.items = [];

async.filter(originalList, function (item, cb) {
  // Check does the user input exist in the name
  cb(item.name.indexOf(userInput) !== -1);
}, function (filteredItems) {
  $scope.items = filteredItems;
});