I don’t know which category to choose
I tried doing stuff in playground and I found:
I can’t add note like you. (Ex.: /Welcome to the Playground/)
There are things that aren’t explain.(ex.: .push(), .pop(), .slice() )
There isn’t possibility to add .on(), because of missing it and missing .svg, .append.
You could make possibility to copy code at least from playground.
EDIT: I found in first post in this section the website where we can use .svg and .d3 library, but could you intergrate it in app? Because I wanna do things like programing instead of playing games when I am waiting at hospital
And sometimes my app grasshopper crash and lagging when I am doing exercises. (Xiaomi Redmi Note 4X)
And of course i like this app like the thematic exercises.