Gist for a watch discussion

unwatch.js

angular.module('app').directive('MyDirective', function(){
  
  //NEW AND IMPROVED, NOW WITH LESS WATCHING!
  return {
    restrict: 'AE',
    replace: 'true',
    templateUrl: '../../blah.html',
    scope:{
      item: '='
    },
    link: function(scope, elem, attrs){
      
      var unwatchItem = scope.$watch('item', function(_new, _old){
        if(!_.isUndefined(_new)){
          //DO SOMETHING COOL WITH _new ITEM
          unwatchItem();
        }
      })
      
    }
  };
})