Flavoring and Branding in TypeScript (Sandbox)

This is a code example of flexible nominal typing in typescript as shown by Atomic Object and also contains their Strongly-Typed Date String.

Features

• Flavoring: flexible nominal types

• Branding: strict nominal types

• Mocha + EarlJs Assertions

Preconditions

• Node 18

  • Use [nvm](https://github.com/nvm-sh/nvm) to nvm use 18

• Install packages npm ci

Usage

• Run tests npm run test

Created via

• node --version > .nvmrc

  1. npm init -y

     1. configure npm by setting "private": true and engines to same node version as in the nvmrc

  2. npm i -D typescript @types/node ts-node

  3. npx tsc --init and configure outdir: "dist", "target": "es2017" and other things by preference

     1. Add "build": "tsc" to package.json.

  4. Add npm install -D mocha @types/mocha earljs

     1. Add "build": "mocha"` to package.json

     2. Add .mocharc.json containing "require": ["ts-node/register"], "spec": ["test/*/.spec.ts"]

     3. Add "types": ["mocha"] to tsconfig.json

     4. Wrap EarlJs Getting Started example in a mocha test/foo.spec.ts file