TypeScript Generics

What are Generics?

Generics allow you to write flexible and reusable code that works with multiple types.

They use a placeholder type (commonly T).

Basic Generic Function

Type Inference

TypeScript can automatically detect the type.

Multiple Generic Types

Generic Interfaces

Generic Constraints

Constraints limit what types can be used.

Full Example

Why Generics are Important

• Reusable code
• Maintain type safety
• Avoid using any
• Used in real applications

Common Mistakes

• Overusing generics
• Not adding constraints
• Confusing generics with any

Practice

Create a generic function that takes a value and returns it inside an array.

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