Type Alias DeepPartial<T>

DeepPartial: T extends (infer U)[]
? DeepPartial<U>[]
: T extends object ? { [K in keyof T]?: DeepPartial<T[K]> } : T

Makes all nested properties optional recursively

递归地将所有嵌套属性设为可选

Type Parameters

T

Example

interface Person {
  name: string
  address: { city: string; zip: string }
}
type PartialPerson = DeepPartial<Person>
// { name: string; address?: { city?: string; zip?: string } | undefined }