Update README

- Add eval.js for quick test

README.md

@@ -33,29 +33,28 @@ Calculate  average and scoring based on Wilson Score Equation
 
 ### Node.js:
 
-Sync v14, ECMAScript modules [have became the official standard format](https://nodejs.org/docs/latest-v14.x/api/esm.html#esm_modules_ecmascript_modules).
-
-Just [enable](https://nodejs.org/api/packages.html#determining-module-system) and enjoy with ES6 import/export syntax.
-
-
 ```js
 import {
   score,
   rate,
   average
 } from 'average-rating'
-```
 
-For regular CommonJS environment, `require` can be used as below:
+// with CommonJS environment
+// const { score, rate, average } = require('feed-reader/dist/cjs/average-rating.js')
 
-```js
-const {
-  score,
-  rate,
-  average
-} = require('average-rating/cjs/average-rating.js')
+score(80, 20) // => 0.71
+average([134055, 57472, 143135, 365957, 1448459]) // => 4.4
+rate([134055, 57472, 143135, 365957, 1448459]) // => 0.84
 ```
 
+
+##### Note:
+
+> Since Node.js v14, ECMAScript modules [have became the official standard format](https://nodejs.org/docs/latest-v14.x/api/esm.html#esm_modules_ecmascript_modules).
+> Just ensure that you are [using module system](https://nodejs.org/api/packages.html#determining-module-system) and enjoy with ES6 import/export syntax.
+
+
 ### Browsers:
 
 Currently ECMAScript modules work fine on almost browsers:

eval.js

@@ -0,0 +1,14 @@
+// eval.js
+
+import {
+  score,
+  rate,
+  average
+} from './src/main.js'
+
+const scoring = [80, 20]
+const rating = [134055, 57472, 143135, 365957, 1448459]
+
+console.log(`score(${scoring.join(', ')}) // => ${score(...scoring)}`)
+console.log(`average([${rating.join(', ')}]) // => ${average(rating)}`)
+console.log(`rate([${rating.join(', ')}]) // => ${rate(rating)}`)

package.json

@@ -20,6 +20,7 @@
     "pretest": "npm run lint",
     "test": "NODE_ENV=test jest --verbose --coverage=true --unhandled-rejections=strict --detectOpenHandles",
     "build": "node build src/main.js",
+    "eval": "node eval",
     "reset": "node reset"
   },
   "devDependencies": {