Modernize (Babel 7 + Hooks)

.babelrc

@@ -1,3 +1,6 @@
 {
-  "presets": ["react-app"]
+  "presets": ["@babel/preset-env", "@babel/preset-react"],
+  "plugins": [
+    "@babel/plugin-proposal-class-properties"
+  ]
 }

.scripts/mocha_runner.js

@@ -5,8 +5,8 @@
 // Use `.scripts/user/pretest.js instead`.
 
 process.env.NODE_ENV = 'development';
-require('babel-core/register');
-require('babel-polyfill');
+require('@babel/register');
+require('@babel/polyfill');
 
 // Add jsdom support, which is required for enzyme.
 var jsdom = require('jsdom').jsdom;

.scripts/prepublish.sh

@@ -9,7 +9,7 @@
 echo "=> Transpiling 'src' into ES5 ..."
 echo ""
 rm -rf ./dist
-NODE_ENV=production ./node_modules/.bin/babel --ignore tests,stories --plugins "transform-runtime" ./src --out-dir ./dist
+NODE_ENV=production ./node_modules/.bin/babel --ignore tests,stories ./src --out-dir ./dist
 echo ""
 echo "=> Transpiling completed."
 

.storybook/config.js

@@ -3,7 +3,7 @@
 // This is an auto generated file with React CDK.
 // Do not modify this file.
 
-import { configure } from '@kadira/storybook';
+import { configure } from '@storybook/react';
 
 function loadStories() {
   require('../src/stories');