Type Alias IsKeyedList<L>

IsKeyedList: L extends Record<any, any>
? true
: L extends Map<any, any> ? true : false

Test whether a list-like structure is keyed.

Type Parameters

L
List-like type

Since

1.1.0

Remarks

Returns true for records and maps, false otherwise.

Example

type A = IsKeyedList< Record< string, number > >; // true
type B = IsKeyedList< Map< number, string > >;    // true
type C = IsKeyedList< number[] >;                 // false