雙向數據綁定手錶

Question

爲什麼$ scope.watch不能與'model'配合使用？ http://jsfiddle.net/lesouthern/8PUtP/5/

.directive('testDirective',function() { 
    return { 
     restrict : 'A', 
     scope : { 
      model : '=ngModel' 
     }, 
     link : function($scope,$element,$attrs) { 
      $scope.$watch('model',function(x) { 
       console.log('this is model: ' + x); 
      }); 
     } 
    } 
}); 

Answer 1

請參閱this question。這是您的更正代碼：

return { 
    restrict : 'A', 
    link : function($scope, $element, $attrs) { 
     $scope.$watch($attrs.ngModel, function(x) { 
      console.log('this is model: ' + x); 
     }); 
    } 
}