vimanvh

// custom type names
type CustomType = "type1" | "type2";

// mapping from custom type names to TypeScript types
type TypeOf<T extends CustomType> =
	T extends "type1" ? string
	: T extends "type2" ? number
	: never;

// generic Options type parametrized by custom types

vimanvh

/**
 * Generický typ pro cestu v objektu
 */
type PathOf<Object extends object, Value> = {
	[Property in keyof Object & string]:
	Object[Property] extends Value
	? `${Property}`
	: Object[Property] extends object
	? `${Property}.${PathOf<Object[Property], Value>}`
	: never