minor on webpack configuration and add build script

package.json

@@ -13,7 +13,8 @@
   "scripts": {
     "test": "npm run test:node && npm run test:browser",
     "test:node": "mocha",
-    "test:browser": "karma start --single-run --browsers ChromeHeadless,FirefoxHeadless karma.config.js"
+    "test:browser": "karma start --single-run --browsers ChromeHeadless,FirefoxHeadless karma.config.js",
+    "build": "webpack"
   },
   "author": "",
   "license": "ISC",

webpack.config.js

@@ -1,17 +1,15 @@
-const path = require('path');
+const path = require('path')
 
-module.exports = []
-for(let target of ['web', 'node']) {
-	var conf = {
-		name: target,
-		entry: './radiomanifest.js',
-		target: [target],
-		output: {
-			path: path.resolve(__dirname, 'dist'),
-			filename: 'radiomanifest-' + target + '.bundle.js',
-			clean: false,
-		},
-	}
-	module.exports.push(conf)
-}
-console.log(module.exports)
+module.exports = ['web', 'node'].map(
+  target => ({
+    name: target,
+    mode: 'production',
+    entry: './radiomanifest.js',
+    target: [target],
+    output: {
+      path: path.resolve(__dirname, 'dist'),
+      filename: 'radiomanifest-' + target + '.bundle.js',
+      clean: false
+    }
+  })
+)