$mol_type

Collection of TypeScript meta types for complex logic.

MAM Usage

type first_of_tuple = $mol_type_assert<
	$mol_type_head<[ 1 , 2 , 3 ]> ,
	1
>

npm install mol_type_all

import {
	$mol_type_assert as Assert ,
	$mol_type_head as Head ,
} from 'mol_type_all'

type first_of_tuple = Assert<
	Head<[ 1 , 2 , 3 ]> ,
	1
>

piotrwitek/utility-types - Collection of utility types, complementing TypeScript built-in mapped types and aliases (think "lodash" for static types).
pirix-gh/ts-toolbelt - All the types you need for TypeScript.
ksxnodemodules/typescript-tuple - Generics to work with tuples in TypeScript