Function updateDocument

updateDocument(collectionName, variableName, variable, callbackStateVariable?): void
Updates a variable/document.
Parameters
- collectionName: string
  The collection where the document is stored.
- variableName: string
  The name under which the variable will be saved (document name).
- variable: Variable
  The variable to update.
- Optional callbackStateVariable: Variable
  The variable where to store the result.
Returns void
- Defined in Extensions/Firebase/B_firebasetools/D_cloudfirestoretools.ts:311