Feature ts esm

.eslintrc

@@ -1,11 +1,20 @@
 {
+  "parserOptions": {
+    "project": "./tsconfig.json"
+  },
   "extends": [
-    "airbnb-base"
+    "airbnb-typescript/base",
+    "plugin:@typescript-eslint/recommended",
+    "plugin:@typescript-eslint/recommended-requiring-type-checking"
   ],
   "plugins": [
-    "promise"
+    "promise",
+    "import"
   ],
   "rules": {
-    "no-param-reassign": 0
+    "no-param-reassign": "off",
+    "lines-between-class-members": "off",
+    "@typescript-eslint/lines-between-class-members": "off",
+    "@typescript-eslint/require-await": "off"
   }
 }

.github/workflows/main.yml

@@ -24,8 +24,8 @@ jobs:
       - run: npm ci
       - run: npm run lint
       - run: npm run test
-      - run: npm run coverage
       - name: Coveralls
+        if: matrix.node-version == '16.x'
         uses: coverallsapp/github-action@master
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}

.gitignore

@@ -22,3 +22,4 @@ node_modules
 coverage
 */config/local.js
 .nyc_output
+build

README.md

@@ -4,12 +4,13 @@ A small rule engine for Node.
 
 ![main workflow](https://github.com/frankthelen/rools/actions/workflows/main.yml/badge.svg)
 [![Coverage Status](https://coveralls.io/repos/github/frankthelen/rools/badge.svg?branch=master)](https://coveralls.io/github/frankthelen/rools?branch=master)
-[![dependencies Status](https://david-dm.org/frankthelen/rools/status.svg)](https://david-dm.org/frankthelen/rools)
+![Dependency Status](https://img.shields.io/librariesio/release/npm/rools)
 [![Maintainability](https://api.codeclimate.com/v1/badges/d1f858c321b03000fc63/maintainability)](https://codeclimate.com/github/frankthelen/rools/maintainability)
 [![node](https://img.shields.io/node/v/rools.svg)](https://nodejs.org)
 [![code style](https://img.shields.io/badge/code_style-airbnb-brightgreen.svg)](https://github.com/airbnb/javascript)
-[![Types](https://img.shields.io/npm/types/rools.svg)](https://www.npmjs.com/package/rools)
-[![License Status](http://img.shields.io/npm/l/rools.svg)]()
+![Types](https://img.shields.io/npm/types/rools)
+![Module](https://img.shields.io/badge/module-hybrid%20cjs%2Fesm-blue)
+![License Status](https://img.shields.io/npm/l/rools)
 
 *Primary goal* was to provide a nice and state-of-the-art interface for modern JavaScript (ES6).
 *Facts* are plain JavaScript or JSON objects or objects from ES6 classes with getters and setters.
@@ -19,7 +20,11 @@ A small rule engine for Node.
 
 Mission accomplished! JavaScript rocks!
 
-See [migration info](#migration) for breaking changes between major versions 1.x.x and 2.x.x.
+* TypeScript -- types included
+* CommonsJS (cjs) -- supporting Node 12+
+* ES Modules (esm) -- supporting Node 14+
+
+See [migration info](#migration) for breaking changes from previous major versions.
 
 ## Install
 
@@ -500,6 +505,25 @@ For this module to work, your **TypeScript compiler options** must include
 
 ## Migration
 
+### Version 2.x.x to Version 3.x.x
+
+Dropped Node 10 support.
+
+Everything was converted from ES6 to TypeScript.
+All tests were converted from Mocha/Chai/Sinon to Jest.
+Both, mostly just for the fun of it.
+
+The goal was to provide Rools as a *hybrid package*
+utilizing multiple TypeScript targets and conditional exports:
+
+* TypeScript -- types included (as before)
+* CommonsJS (cjs) -- supporting Node 12+ (as before -- but dropping Node 10)
+* ES Modules (esm) -- supporting Node 14+ (new)
+
+Everything should work as before -- *no breaking changes*.
+But since nearly everything was touched, as a precaution,
+I have created a new major version.
+
 ### Version 1.x.x to Version 2.x.x
 
 There are a few breaking changes that require changes to your code.

jest.config.ts

@@ -0,0 +1,22 @@
+export default {
+  clearMocks: true,
+  collectCoverage: true,
+  coverageDirectory: 'coverage',
+  coveragePathIgnorePatterns: [
+    '/node_modules/',
+    '/config/',
+    '/test/',
+  ],
+  coverageProvider: 'v8',
+  coverageThreshold: {
+    global: {
+      statements: 80,
+      branches: 80,
+      functions: 80,
+      lines: 80,
+    },
+  },
+  preset: 'ts-jest',
+  testEnvironment: 'node',
+  testRegex: '/test/.*\\.test\\.ts$',
+};