Type alias FlattenKeys<T, P, Delimiter>

FlattenKeys<T, P, Delimiter>: T extends object
    ? {
        [K in keyof T]-?: `${P extends string | number
                ? P
                : never}${P extends ""
                ? ""
                : Delimiter}${string & K}` extends infer E
            ? T[K] extends readonly any[] | null
                ? E
                : FlattenKeys<T[K], E extends string | number | symbol
                    ? E
                    : never, Delimiter>
            : never
    }[keyof T]
    : P

Create a union of flattened keys from an object.

Type Parameters

T
P extends string | number | symbol = ""
Delimiter extends string = "."

Type alias FlattenKeys<T, P, Delimiter>

Type Parameters

T

P extends string | number | symbol = ""

Delimiter extends string = "."

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