Update to modern javascript

.babelrc

@@ -0,0 +1,14 @@
+{
+  "presets": [
+    [
+      "@babel/preset-env",
+      {
+        "modules": false,
+        "useBuiltIns": false
+      }
+    ]
+  ],
+  "plugins": [
+    "@babel/plugin-proposal-export-default-from"
+  ]
+}

.eslintrc.json

@@ -1,33 +1,8 @@
 {
-  "extends": "google",
-
+  "extends": ["airbnb", "plugin:prettier/recommended"],
   "rules": {
-    "no-var": "off",
-    "indent": [
-      "error",
-      2
-    ],
-    "linebreak-style": [
-      "error",
-      "unix"
-    ],
-    "quotes": [
-      "error",
-      "double", {
-        "avoidEscape": true
-      }
-    ],
-    "semi": [
-      "error",
-      "always"
-    ],
-    "max-len": [
-      "warn", {
-        "ignoreComments": true
-      }
-    ],
-    "prefer-spread": ["off"],
-    "prefer-rest-params": ["off"],
-    "camelcase" : ["off"]
+    "no-plusplus": ["error", { "allowForLoopAfterthoughts": true }],
+    "no-use-before-define": ["error", { "functions": false }],
+    "camelcase": "off"
   }
 }

.gitignore

@@ -1,6 +1,8 @@
 node_modules
 tests/*.json
 
+package-lock.json
+
 # editor and IDE remnants
 *~
 .idea/

.huskyrc

@@ -0,0 +1,5 @@
+{
+  "hooks": {
+    "pre-commit": "lint-staged"
+  }
+}

.lintstagedrc

@@ -0,0 +1,3 @@
+{
+  "src/**/*.{js,jsx,json}": ["eslint --fix", "git add"]
+}

.npmignore

@@ -1,4 +1,5 @@
 tests/tests.json
+src
 play.html
 bower.json
 

.prettierrc

@@ -0,0 +1,6 @@
+{
+  "trailingComma": "es5",
+  "semi": true,
+  "singleQuote": true,
+  "bracketSpacing": true
+}

README.md

@@ -8,24 +8,33 @@ The same format can also be executed in PHP by the library [json-logic-php](http
 
 ## Installation
 
-To parse JsonLogic rules in a JavaScript frontend, install this library is via [Bower](http://bower.io/):
+To parse JsonLogic rules in a JavaScript backend (like Node.js), install this library via [NPM](https://www.npmjs.com/):
 
 ```bash
-bower install --save json-logic-js
+npm install @axa-ch/json-logic-js --save
 ```
 
-To parse JsonLogic rules in a JavaScript backend (like Node.js), install this library via [NPM](https://www.npmjs.com/):
+Note that this project provides:
+- an ESM build for cherry picking
+- a [module loader](http://ricostacruz.com/cheatsheets/umdjs.html) that also makes it suitable for RequireJS projects.
+- a minified bundle ready for the browser
 
-```bash
-npm install json-logic-js
-```
+If that doesn't suit you, and you want to manage updates yourself, the entire library is self-contained in `dist/jsonLogic.js` and you can download it straight into your project as you see fit.
 
-Note that this project uses a [module loader](http://ricostacruz.com/cheatsheets/umdjs.html) that also makes it suitable for RequireJS projects.
+## Cherry-picked build
 
-If that doesn't suit you, and you want to manage updates yourself, the entire library is self-contained in `logic.js` and you can download it straight into your project as you see fit.
+If the default bundle size is too big for you or you only need certain operations, just utilize the ESM build and create your customized `jsonLogic` object as follows:
 
-```bash
-curl -O https://raw.githubusercontent.com/jwadhams/json-logic-js/master/logic.js
+```js
+import createJsonLogic from './createJsonLogic';
+
+// pick just what you need, or create your own
+import { equal } from './operations';
+import { and, or } from './visitors';
+
+const jsonLogic = createJsonLogic({ equal }, { and, or });
+
+export default jsonLogic;
 ```
 
 ## Examples
@@ -122,7 +131,7 @@ jsonLogic.apply(false, i_wasnt_even_supposed_to_be_here);
 
 ## Compatibility
 
-This library makes use of `Array.map` and `Array.reduce`, so it's not *exactly* Internet Explorer 8 friendly.
+This library makes use of `Array.isArray`, `Array.forEach`, `Array.map` and `Array.reduce`, so it's not *exactly* Internet Explorer 8 friendly.
 
 If you want to use JsonLogic *and* support deprecated browsers, you could easily use [BabelJS's polyfill](https://babeljs.io/docs/usage/polyfill/) or directly incorporate the polyfills documented on MDN for [map](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/map) and [reduce](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/reduce).