Where and how to add a constant global variable for angular 2/ ionic 2?
Angular 1 is angular.constant(), whet is it in angular 2?
Create class with static fields.
or create a new file/module and export the constant 
Where and how to add a constant global variable for angular 2/ ionic 2?
Angular 1 is angular.constant(), whet is it in angular 2?
Create class with static fields.
or create a new file/module and export the constant