Call file assets js html and css using like this post using webviewer?

i would like to program using webviewer app in real time my javascript html and css code for changing my code and get the visual results. its possible make that?

Yes
Just try something and if you got stuck, post a screenshot of your relevant blocks

Taifun

You can use the path:

http://localhost/your.html

to load html files from the assets in both companion and compiled apps.

Other files, e.g. .js files in the assets, can be accessed with relative links in your html