Fill TWebDataSet with local JSON data file

Is my understanding correct, that in an Electron application I have access to local files and therefore it is possible to read/write from/into a local JSON data file?

Yes, there is local file access.
The TElectronStringList could be a way to read/write this file as it has a SaveToFile(), LoadFromFile()

TWebClientDataSet.Rows is of type TJSArray

I can't use the helper methods?

LoadFromJSONFile();
SaveToJSONFile();

These methods do not exist.

The Delphi RAD Studio code completion told me

Then you have different code completion than here
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