Type Alias PartiallyMapped<Keys, T>

PartiallyMapped: { [K in Keys]?: T }

Constructs an object whose properties are optional and which keys are Keys and property values are T.

Type Parameters

Keys extends string
A string type, likely string template
T
Any type that can fit into an object

Remarks

Complementary to Mapped.

Example

const stringValidator: PartiallyMapped< 'username' | 'email', ( field: string ) => boolean > = {
  username: ( field: string ) => regex.validate( 'username', field )
};