AngularJS access scope from outside js function

It's been a while since I posted this question, but considering the views this still seems to get, here's another solution I've come upon during these last few months:

$scope.safeApply = function( fn ) {
    var phase = this.$root.$$phase;
    if(phase == '$apply' || phase == '$digest') {
        if(fn) {
            fn();
        }
    } else {
        this.$apply(fn);
    }
};

The above code basically creates a function called safeApply that calles the $apply function (as stated in Arun's answer) if and only Angular currently isn't going through the $digest stage. On the other hand, if Angular is currently digesting things, it will just execute the function as it is, since that will be enough to signal to Angular to make the changes.

Numerous errors occur when trying to use the $apply function while AngularJs is currently in its $digest stage. The safeApply code above is a safe wrapper to prevent such errors.

(note: I personally like to chuck in safeApply as a function of $rootScope for convenience purposes)

Example:

function change() {
    alert("a");
    var scope = angular.element($("#outer")).scope();
    scope.safeApply(function(){
        scope.msg = 'Superhero';
    })
}

Demo: http://jsfiddle.net/sXkjc/227/

we can call it after loaded

http://jsfiddle.net/gentletech/s3qtv/3/

<div id="wrap" ng-controller="Ctrl">
    {{message}}<br>
    {{info}}
    </div>
    <a  onClick="hi()">click me </a>

    function Ctrl($scope) {
        $scope.message = "hi robi";
        $scope.updateMessage = function(_s){
            $scope.message = _s;    
        };
    }

function hi(){
    var scope = angular.element(document.getElementById("wrap")).scope();
        scope.$apply(function() {
        scope.info = "nami";
        scope.updateMessage("i am new fans like nami");
    });
}

Another way to do that is:

var extScope;
var app = angular.module('myApp', []);
app.controller('myController',function($scope, $http){
    extScope = $scope;
})
//below you do what you want to do with $scope as extScope
extScope.$apply(function(){
    extScope.test = 'Hello world';
})

It's been a long time since I asked this question, but here's an answer that doesn't require jquery:

function change() {
    var scope = angular.element(document.querySelector('#outside')).scope();
    scope.$apply(function(){
        scope.msg = 'Superhero';
    })
}

Here's a reusable solution: http://jsfiddle.net/flobar/r28b0gmq/

function accessScope(node, func) {
    var scope = angular.element(document.querySelector(node)).scope();
    scope.$apply(func);
}

window.onload = function () {

    accessScope('#outer', function (scope) {
        // change any property inside the scope
        scope.name = 'John';
        scope.sname = 'Doe';
        scope.msg = 'Superhero';
    });

};

The accepted answer is great. I wanted to look at what happens to the Angular scope in the context of ng-repeat. The thing is, Angular will create a sub-scope for each repeated item. When calling into a method defined on the original $scope, that retains its original value (due to javascript closure). However, the this refers the calling scope/object. This works out well, so long as you're clear on when $scope and this are the same and when they are different. hth

Here is a fiddle that illustrates the difference: https://jsfiddle.net/creitzel/oxsxjcyc/

<input type="text" class="form-control timepicker2" ng-model='programRow.StationAuxiliaryTime.ST88' />

accessing scope value

assume that programRow.StationAuxiliaryTime is an array of object

 $('.timepicker2').on('click', function () 
    {
            var currentElement = $(this);

            var scopeValues = angular.element(currentElement).scope();
            var model = currentElement.attr('ng-model');
            var stationNumber = model.split('.')[2];
            var val = '';
            if (model.indexOf("StationWaterTime") > 0) {
                val = scopeValues.programRow.StationWaterTime[stationNumber];
            }
            else {
                val = scopeValues.programRow.StationAuxiliaryTime[stationNumber];
            }
            currentElement.timepicker('setTime', val);
        });

I'm newbie, so sorry if is a bad practice. Based on the chosen answer, I did this function:

function x_apply(selector, variable, value) {
    var scope = angular.element( $(selector) ).scope();
    scope.$apply(function(){
        scope[variable] = value;
    });
}

I'm using it this way:

x_apply('#fileuploader', 'thereisfiles', true);

By the way, sorry for my english

You can also try:

function change() {
    var scope = angular.element( document.getElementById('outer') ).scope();
    scope.$apply(function(){
        scope.msg = 'Superhero';
    })
}