| # | title | topic | type | difficulty |
|---|---|---|---|---|
| 1 | Spot the anti-pattern: == everywhere | Patterns & Performance | Multiple choice | Easy |
| 2 | Spot the anti-pattern: var in 2026 | Patterns & Performance | Multiple choice | Easy |
| 3 | Copy or alias? | Patterns & Performance | Multiple choice | Easy |
| 4 | Factory functions vs constructors | Patterns & Performance | Multiple choice | Easy |