How to pass a value from a Widget to a Catalog item variable

[MBarrott]

I have a custom widget which is pulling driving directions from a API and parsing it as a string to a variable. 

I can see that the directions are parsed correctly via console or system logs, however I now want to pass them to a text multi-line variable I have on the Catalog Item. I browsed the forums and saw some mentions of using $scope but nothing has seemed to work and I'm not familiar with AngularJS. 

What is the optimal and/or easiest way to pass this string from the widget to the catalog item variable?

[Ankur Bawiskar]

@MBarrott 

then use the syntax I shared and it should work fine

api.controller = function($scope) {
    /* widget controller */
    var c = this;
$scope.page.g_form.setValue('variableName', 'Your Value');

};

If my response helped please mark it correct and close the thread so that it benefits future readers.

[Ankur Bawiskar]

@MBarrott 

Hope you are doing good.

Did my reply answer your question?

If my response helped please mark it correct and close the thread so that it benefits future readers.

[MBarrott]

Thank you @Ankur Bawiskar! $scope not included in the function param was the issue.