Isolated scopes

directive.js

app.directive('isolated', function() {
  return {
    scope: {},
    template: '<input ng-model="message.content"><span>{{message.content}}</span>'
  };
});

view.html

<div ng-controller="EditController">
  <input ng-model="message.content">
  <span>{{message.content}}</span>
  <div isolated></div>
</div>