| # | title | topic | type | difficulty |
|---|---|---|---|---|
| 1 | Two async functions interleave | Event Loop & Memory | Drag & drop | Medium |
| 2 | Stack frames and the heap | Event Loop & Memory | Multiple choice | Medium |
| 3 | Event loop machine: a .then chain vs a timer | Event Loop & Memory | Runtime machine | Medium |
| 4 | Event loop machine: what await actually does | Event Loop & Memory | Runtime machine | Medium |