angularJs中的一种方式和两种方式的数据绑定

Question

while building a very large scale angular application i came across a performance issue. all my components and views heavily depend on data bindings, there ng-repeats everywhere. so i decided to remove all the 2 way databindings by adding {{::scopevariableName}} , now since there is no 2 way data binding my question is will the view update if modal value is changed in the controller?

function myCtr(){
   var that=this;
   this.scopevariableName='hannad'
   this.someFunction=function(){
     someEvent(function(callbackData){
        if(callbackData){
           that.scopevariableName='new value for scope variable'
       }
  });
 }
}


<p ng-bind="::$ctrl.somevariableName"></p>

Answer 1

from the docs: One-time expressions will stop recalculating once they are stable, which happens after the first digest if the expression result is a non-undefined value.

My understanding of one-time binding is after the first initialization of the scope variable if the object value changes the view will NOT change. because the watchers are not in effect. ex

$scope.myVar=null;
<p>{{::myVar}}</p>

if the there are any changes to $scope.myVar those will not effect in the view because it will take only its first initialization value. thats null.