Programming Languages
TypeScript
Interview
Oct 01, 2025
Explain generics in TypeScript with examples.
Detailed Explanation
Generics allow creating reusable components that work with multiple types while maintaining type safety. Example: function identity(arg: T): T { return arg; } - T is a type parameter that can be any type. Generic interfaces: interface Array { [index: number]: T; }, Generic classes: class GenericClass { value: T; }, Generic constraints: limits T to string types. Generics enable type-safe, reusable code without sacrificing performance.
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