I feel it's really hard for me to figure out how to build curves etc. with jscad. Actually, I can only build things with primitives and boolean operations. Are there any good books for this topic? I tried to learn from the jscad source code, but they are some kind of math which I don't know where to start.
@hrgdavor yeah, that's the next thing to update 
then some options to configure the viewer (show/hide grid etc.)
Hi everyone,
I create a vscode extension to simplify the change-update cycle for myself. I guess someone here may need it too.
Notice: it only works for v2, so remember to use v2 syntax.
It watches the file/directory you choose to preview, so you can use bundlers such as webpack/rollup with transformers such as typescript to organize your project.
Here is the link to it:
https://marketplace.visualstudio.com/items?itemName=crysislinux.openjscad
Leave a five star if it helps you 