TypeScript Intermediate Quiz 1

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Quiz 1
1. A type that maps the keys of one type to another.
2. The process of narrowing a variable type based on conditional checks.
3. Utility type that makes all properties of an interface optional.
4. A function that calls itself to solve a smaller instance of a problem.
5. Decorator that is applied to a class property.
6. Syntax used to assert a type when the compiler cannot infer it.
7. Accessing a property using a variable string key.
8. Utility type that extracts a subset of properties from a type.
9. Interface property that allows any additional properties.
10. Pattern for grouping related constants as a namespace.
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