type-vs-interface

SKILL.md

Both type and interface can define object types, but they have different capabilities. Understanding these differences helps you choose the right tool and write consistent code.

| Object type (API response, props) | interface | | Union type | type | | Tuple type | type | | Function type | type | | Mapped type | type | | Primitive alias | type | | Library types meant to be extended | interface |

This is how TypeScript extends standard library types across ES versions.

À utiliser lors de la définition des types d'objet. À utiliser lors du choix entre le type et l'interface. À utiliser lors de l'extension de types. Source : marius-townhouse/effective-typescript-skills.

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