Angularjs call $scope.function from plain JS function [duplicate]

Question

I am trying to implement a google recapcha, I am able to verify user is Human with the help of it,

The reCapcha code is calling Callback function named 'verifyCallback'in my code, Further I want to call an AngularJS fucntion written in my controller scope.

Here are my codes so far -

Main Html , I've included-

<script src="https://www.google.com/recaptcha/api.js?onload=onloadCallback&render=explicit" async defer></script>

Html partial -

    var onloadCallback = function() 
    {
        grecaptcha.render('loginCapcha', {
            'sitekey' : 'someKey',
            'callback' : verifyCallback,
            'theme':'dark'

        });
    };

    var verifyCallback = function(response) 
    {
        //I get a response if user is able to solve the Capcha challenge
        console.log(response);

        //I want to call the function called 'auth' written in my AngularJS controller
        var scope = angular.element(document.getElementById('#loginCapcha')).scope();
        scope.auth();
    };

    <div id="loginCapcha"></div>

AngularJS Controller -

var _myApp = angular.module('homeApp',[]);

_myApp.controller('loginController',['$scope',
 function($scope){

    $scope.auth = function()
    {
        console.log("Auth called");
    }
}]);

Answer 1

<div ng-controller='loginController' id='yourControllerElementID'> 

</div>

For above scenario, use following code:

var scope = angular.element(document.getElementById('yourControllerElementID')).scope();
scope.auth();

So, your method will look like this:

var verifyCallback = function(response) 
    {
        //I get a response if user is able to solve the Capcha challenge
        console.log(response);

        //I want to call the function called 'auth' written in my AngularJS controller
        var scope = angular.element(document.getElementById('#yourControllerElementID')).scope();
        scope.auth();
    };