Interface naming

Use PascalCase for interface names (e.g., UserProfile, ProductItem)

Type inference

Tool automatically detects types: string, number, boolean, array, object

Optional properties

Add ? to optional properties: name?: string

Array types

Arrays are typed as Type[]: string[], number[], or object arrays

Nested objects

Nested objects become nested interfaces or inline types

Readonly properties

Make properties immutable with readonly keyword: readonly id: number