Get the reference Scope of a selected element

get_element_scope.js

// assuming the following angular code
function Ctrl($scope){
  $scope.thevar = 'SOME';
  $scope.something = function(){
      $scope.thevar = 'CHANGED';
  } 
}

// the html element:
/* <p id="el">{{thevar}}</p> */


// get the reference
var cscope = angular.element( $('#el') ).scope()

// call a scope method
cscope.$apply(function(){ 
  cf.something(); 
});

// change a variable value
cscope.$apply(function(){ 
  cscope.thevar = 'AGAIN'; 
});