MapKeys

Since 1.3.0

Get all keys from a type-level map. Returns a union of all key types.

Signature

export type MapKeys<M> = keyof M

Parameters

Parameter	Description
M	The type-level map

Examples

Basic Usage

import type { MapKeys } from 'uni-types'

type Config = { host: string; port: number; ssl: boolean }
type Result = MapKeys<Config>
// 'host' | 'port' | 'ssl'

Empty Map

type Empty = {}
type Result = MapKeys<Empty>
// never