Case

Since v1.3.0

Case helper for type-level pattern matching. Defines a case in a pattern matching expression, simply returning the property key itself.

Signature

export type Case<P extends PropertyKey> = P

Parameters

Parameter	Description
P	The property key representing this case

Examples

Basic Usage

import type { Case } from 'uni-types'

type A = Case<'a'> // 'a'
type B = Case<'b'> // 'b'

With Pattern Matching

import type { Case, Match } from 'uni-types'

type Action = 'create' | 'update' | 'delete'
type Pattern = { create: Case<'create'>; update: Case<'update'>; delete: Case<'delete'> }
type Result = Match<Action, Pattern>
// 'create' | 'update' | 'delete'