| # | title | topic | type | difficulty |
|---|---|---|---|---|
| 1 | typeof's famous lies | YDKJS Book | Multiple choice | Medium |
| 2 | The module pattern: private state via closure | YDKJS Book | Coding | Medium |
| 3 | Automatic Semicolon Insertion strikes | YDKJS Book | Multiple choice | Medium |
| 4 | once(fn) — run exactly one time | YDKJS Book | Coding | Medium |
| 5 | Tagged templates: redact the interpolations | YDKJS Book | Coding | Medium |