Question:How to know if resetZoom() is already applied to a diagram

GoJS
1

I need to show visibility of resetZoom button. where i hooked resetZoom() command.
How i can know if resetZoom() is already applied and resetZoom is no longer needed(nodes are in normal zoom fit) and disable resetZoom button?

2

Do you want to disable that command when Diagram.scale == CommandHandler.defaultScale?

3

Is that different from if dia.scale==1 ?
I tried above its not working.
Defaultscale isn’t 1?

4