fwouts

You may want to check out previewjs.com (disclaimer I'm the author) although it's unfortunately not getting much love or attention lately, my kids are using all of that.

Unless I completely misunderstood the post, a function that calls another function with effects will indeed be "infected". That is, unless the effect ends up being local (such as passing a mutable reference to a local variable).

This is now implemented. Easier than expected!

Generating random values is live now :)

Oh, I was wondering if people would ask for that exact scenario! I'll see if I can make that happen, check again in a few days :)

Thanks for the feedback!

Random values sound like a fantastic idea. It shouldn't be too hard to implement in the current codebase either. I'll add it in the coming days/weeks.

Hey! Author of Preview.js here :)

It's early days and you might find that Preview.js can be a little difficult to set up in a large, complex project (working on improving that now) but please send through any feedback on the GitHub repo or Discord server, much appreciated!

Thank you, appreciate it! :)