how to learn vro javascript commands

Hello

I used to work with powercli and I am now learning orchestrator which is much more powerfull but i have an issue. I do not know Javascript and I do not know the vcenter API and javascripts commandletts for javascript

this bring two questions

1 is it possible to have with javascript for vcenter the same command prompt we have with powercli which help to undersdand the vcenter commands (get-member)

2 is there a vcenter document identical to the powercli commandlets references ?

thanks for your help