Type Alias DeepKeys<T, Prefix>

DeepKeys: T extends object
    ? {
        [K in keyof T & string]: T[K] extends object
            ? DeepKeys<T[K], `${Prefix}${K}.`>
            : `${Prefix}${K}`
    }[keyof T & string]
    : never

Recursively extract nested keys from an object type Converts nested object to dot-notation string union

Type Parameters

T
Prefix extends string = ""

Example

type Example = { auth: { login: { title: string } } }
type Keys = DeepKeys<Example>
// Results in: 'auth.login.title'

Type Alias DeepKeys<T, Prefix>

Type Parameters

Example

Settings