Cheat Sheet
| Question | Core Idea | Senior Signal |
|---|---|---|
| Q141 | Strict mode | Modern modules are strict by default and turn many silent failures into errors. |
| Q142 | Module cycles | Live bindings do not make circular dependency timing automatically safe. |
| Q143 | Lazy loading | Split code where delayed loading matches delayed user intent. |
| Q144-Q145 | Runtime contracts | Validate at trust boundaries and normalize API data once. |