1. What is Generic ? Mid A. T extends U ? X : Y, selecting one type or another based on an assignability check B. a type parameter like <T> that lets a function or type work over many types while preserving their relationship C. in type position, produces the static type of a value or variable D. <T extends U>, restricting a type parameter to types assignable to U
2. Which term means: "a type parameter like <T> that lets a function or type work over many types while preserving their relationship"? Mid A. keyof B. typeof type operator C. Generic D. Conditional type
3. Which statement is correct? Mid A. Generic — <T extends U>, restricting a type parameter to types assignable to U B. Generic — a type parameter like <T> that lets a function or type work over many types while preserving their relationship C. Generic — T extends U ? X : Y, selecting one type or another based on an assignability check D. Generic — { [K in keyof T]: ... }, a type that transforms each property of an existing type
4. What is Generic constraint ? Mid A. a type parameter like <T> that lets a function or type work over many types while preserving their relationship B. <T extends U>, restricting a type parameter to types assignable to U C. an operator producing a union of the property names of a type D. T extends U ? X : Y, selecting one type or another based on an assignability check
5. Which term means: "<T extends U>, restricting a type parameter to types assignable to U"? Mid A. Mapped type B. Conditional type C. keyof D. Generic constraint
6. Which statement is correct? Mid A. Generic constraint — an operator producing a union of the property names of a type B. Generic constraint — T extends U ? X : Y, selecting one type or another based on an assignability check C. Generic constraint — in type position, produces the static type of a value or variable D. Generic constraint — <T extends U>, restricting a type parameter to types assignable to U
7. What is keyof ? Mid A. { [K in keyof T]: ... }, a type that transforms each property of an existing type B. an operator producing a union of the property names of a type C. in type position, produces the static type of a value or variable D. a type parameter like <T> that lets a function or type work over many types while preserving their relationship
8. Which term means: "an operator producing a union of the property names of a type"? Mid A. typeof type operator B. Conditional type C. keyof D. Generic constraint
9. Which statement is correct? Mid A. keyof — an operator producing a union of the property names of a type B. keyof — in type position, produces the static type of a value or variable C. keyof — { [K in keyof T]: ... }, a type that transforms each property of an existing type D. keyof — T extends U ? X : Y, selecting one type or another based on an assignability check
10. What is typeof type operator ? Senior A. an operator producing a union of the property names of a type B. a type parameter like <T> that lets a function or type work over many types while preserving their relationship C. T extends U ? X : Y, selecting one type or another based on an assignability check D. in type position, produces the static type of a value or variable
11. Which term means: "in type position, produces the static type of a value or variable"? Senior A. Mapped type B. Generic C. typeof type operator D. Conditional type
12. Which statement is correct? Senior A. typeof type operator — an operator producing a union of the property names of a type B. typeof type operator — T extends U ? X : Y, selecting one type or another based on an assignability check C. typeof type operator — { [K in keyof T]: ... }, a type that transforms each property of an existing type D. typeof type operator — in type position, produces the static type of a value or variable
13. What is Conditional type ? Senior A. an operator producing a union of the property names of a type B. a type parameter like <T> that lets a function or type work over many types while preserving their relationship C. T extends U ? X : Y, selecting one type or another based on an assignability check D. { [K in keyof T]: ... }, a type that transforms each property of an existing type
14. Which term means: "T extends U ? X : Y, selecting one type or another based on an assignability check"? Senior A. Mapped type B. typeof type operator C. Generic constraint D. Conditional type
15. Which statement is correct? Senior A. Conditional type — { [K in keyof T]: ... }, a type that transforms each property of an existing type B. Conditional type — T extends U ? X : Y, selecting one type or another based on an assignability check C. Conditional type — in type position, produces the static type of a value or variable D. Conditional type — a type parameter like <T> that lets a function or type work over many types while preserving their relationship
16. What is Mapped type ? Senior A. in type position, produces the static type of a value or variable B. T extends U ? X : Y, selecting one type or another based on an assignability check C. a type parameter like <T> that lets a function or type work over many types while preserving their relationship D. { [K in keyof T]: ... }, a type that transforms each property of an existing type
17. Which term means: "{ [K in keyof T]: ... }, a type that transforms each property of an existing type"? Senior A. keyof B. Generic C. typeof type operator D. Mapped type
18. Which statement is correct? Senior A. Mapped type — T extends U ? X : Y, selecting one type or another based on an assignability check B. Mapped type — { [K in keyof T]: ... }, a type that transforms each property of an existing type C. Mapped type — a type parameter like <T> that lets a function or type work over many types while preserving their relationship D. Mapped type — in type position, produces the static type of a value or variable