how to access $rootscope variable in angularjs?

Question

I want to assign some data to a global variable (may be $rootscope) which gets initialized at pageload. And then I want to access that data from all the controllers. How would I do that?

// Edit : I tried following and it works as expected....

function Ctrl1($rootScope) {
    $rootScope.value = "asdf";
}

function Ctrl2($rootScope, $scope) {
    $scope.value = $rootScope.value;
}

Thanks for quick reply Chandermani. Will $rootscope remain common across all the controllers? I mean can I assign something to it in one controller function and access it back from the other controller function? Sorry, I am very new to angularjs (2days old..!) — exAres
– exAres, Commented Sep 19, 2013 at 6:17
Yes absolutely! You can alway try it out. $rootScope is the thing closest to global variable in Angular and hence it's use should be minimized. There are other ways to share data, search for angular services. — Chandermani
– Chandermani, Commented Sep 19, 2013 at 6:29
Thank you Chandermani. Following works. function Ctrl1($rootScope) { $rootScope.value = "asdf"; } function Ctrl2($rootScope, $scope) { $scope.value = $rootScope.value; } — exAres
– exAres, Commented Sep 19, 2013 at 6:36
Sharing same data between controllers means sharing data via service . You can use factory for this. — Anil Arya
– Anil Arya, Commented Jun 5, 2014 at 5:27

CodeSamurai777 · Accepted Answer · 2013-09-19 07:56:47Z

6

MyController($rootScope,$scope)
{
  $rootScope = ....
}

you get the point :)

answered Sep 19, 2013 at 7:56

CodeSamurai777

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julian · Accepted Answer · 2015-12-17 20:28:06Z

1

If you are trying to show the variable in the view, there is not need of assign the variable from $rootScope to $scope.

answered Dec 17, 2015 at 20:28

julian

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