insure `component` retains `list`

[timelyportfolio]

As pointed out in and , htmlwidgets::JS will no longer work as expected in reactR::component. I think reactR.

[gadenbuie]

Hi JS() was definitely not something I anticipated when working on the PR that changed the recursive behavior of htmltools::shouldEval().

Would you be able to show me in a small example how reactR uses JS()? It would help me to understand the scope of the problems this new behavior is causing.

[timelyportfolio]

reactR uses JS() is that a reactR::component is a thin wrapper of shiny.tag. Any reactR widget is nearly identical to an htmlwidget except there might be component instead of shiny.tag.

I will likely preserve this change regardless of decision in htmlwidgets, since I do not see any negative side effects of preserving list.

[glin]

[timelyportfolio]

thanks list to set of classes for reactR::component.