Type Container

Essential component for TypeScript magics.

npm i type-container

A Type Container is simply an empty object but carries specific TypeScript type information, enabling infinite possibilities of advanced type inferences and manipulations.

The $type function produces a type container:

const $payload = $type<{ id: string }>();
// $payload -> TypeContainer<{ id: string }>

Conventionally, variables and parameters of a TypeContainer type are prefixed with $ for easy identification.

To extract the type information from a type container, use the ContainedTypeOf type:

const $payload