TypeScript Interfaces vs Types

Interfaces and type aliases are two powerful features used for defining structures in TypeScript.

Interfaces

Interfaces are mainly used for describing object shapes and are commonly used in large applications.

Type Aliases

Types can represent objects, primitives, unions, and complex combinations.

When To Use Interfaces

Interfaces are useful when creating reusable object contracts and working with class-based designs.

When To Use Types

Types are better for advanced compositions and utility patterns.

Final Thoughts

Both are valuable tools, and choosing between them depends on project requirements.