| # | title | topic | type | difficulty |
|---|---|---|---|---|
| 1 | The + operator: string context wins | Type Coercion | Multiple choice | Hard |
| 2 | The == algorithm, step by step | Type Coercion | Multiple choice | Hard |
| 3 | Take control of ToPrimitive | Type Coercion | Coding | Hard |
| 4 | Reimplement == from the spec (without using ==) | Type Coercion | Coding | Hard |
| 5 |
| null >= 0 but null != 0 |
| Type Coercion |
| Multiple choice |
| Hard |
| 6 | The army of things equal to nothing | Type Coercion | Multiple choice | Hard |
| 7 | '10' < '9' — string comparison traps | Type Coercion | Multiple choice | Hard |
| 8 | {} + [] — position is everything | Type Coercion | Multiple choice | Hard |
| 9 | Symbols: explicit yes, implicit never | Type Coercion | Multiple choice | Hard |
| 10 | Loose equality is not transitive | Type Coercion | Multiple choice | Hard |
| 11 | Make c == 1 && c == 2 && c == 3 true | Type Coercion | Coding | Hard |
| 12 | Drag the coercion algorithm into order: [10] == 10 | Type Coercion | Drag & drop | Hard |
| 13 | Coercion flow: [] + {} | Type Coercion | Drag & drop | Hard |
| 14 | Coercion flow: {} + [] (statement position) | Type Coercion | Drag & drop | Hard |
| 15 | Coercion flow: [] == ![] | Type Coercion | Drag & drop | Hard |
| 16 | Coercion flow: null >= 0 | Type Coercion | Drag & drop | Hard |