Rendering Conditional Render

## Use Explicit Conditional Rendering Use explicit ternary operators (`? :`) instead of `&&` for conditional rendering when the condition can be `0`, `NaN`, or other falsy values that render. **Incorrect (renders "0" when count is 0):** ```tsx function Badge({ count }: { count: number }) { return ( ) } // When count = 0, renders: // When count = 5, renders: ``` **Correct (renders nothing when count is 0):** ```tsx function Badge({ count }: { count: number }) { return ( ) } // When count = 0, renders: // When count = 5, renders: ```