Function getVariable

getVariable(path, callbackValueVariable, callbackStateVariable?): void
Gets a database variable and store it in a variable.
Parameters
- path: string
  The name under which the variable will be saved (document name).
- callbackValueVariable: Variable
  The variable where to store the result.
- Optional callbackStateVariable: Variable
  The variable where to store if the operation was successful.
Returns void
- Defined in Extensions/Firebase/B_firebasetools/D_databasetools.ts:171