| # | title | topic | type | difficulty |
|---|---|---|---|---|
| 1 | The call stack: push, run, pop | Event Loop & Memory | Multiple choice | Easy |
| 2 | Microtask starvation | Event Loop & Memory | Multiple choice | Hard |
| 3 | Stack frames and the heap | Event Loop & Memory | Multiple choice | Medium |
| 4 | Find the leak-proof cache | Event Loop & Memory | Multiple choice | Hard |