use flow and flow-runtime instead of typecheck

Author: bertho-zero

.babelrc

@@ -7,13 +7,18 @@
   "plugins": [
     "transform-runtime",
     "add-module-exports",
-    "transform-decorators-legacy"
+    "transform-decorators-legacy",
+    [
+      "flow-runtime",
+      {
+        "assert": true,
+        "annotate": true
+      }
+    ]
   ],
   "env": {
     "development": {
-      "plugins": [
-        "typecheck"
-      ]
+      "plugins": []
     }
   }
 }

package.json

@@ -127,6 +127,7 @@
     "feathers-nedb": "^2.6.0",
     "feathers-rest": "^1.6.0",
     "feathers-socketio": "^1.4.2",
+    "flow-runtime": "^0.2.1",
     "http-proxy": "^1.16.2",
     "is-promise": "^2.1.0",
     "js-cookie": "^2.1.3",
@@ -164,7 +165,7 @@
     "babel-eslint": "^7.1.1",
     "babel-jest": "^18.0.0",
     "babel-loader": "^6.2.10",
-    "babel-plugin-typecheck": "^3.9.0",
+    "babel-plugin-flow-runtime": "^0.2.1",
     "better-npm-run": "^0.0.14",
     "bootstrap-loader": "^2.0.0-beta.20",
     "bootstrap-sass": "^3.3.7",

src/containers/App/App.js

@@ -71,6 +71,10 @@ export default class App extends Component {
     const { user, notifs, children } = this.props;
     const styles = require('./App.scss');
 
+    const add = (a: number, b: number): number => a + b;
+    console.log(add(3, 4));
+    console.log(add(3, false));
+
     return (
       <div className={styles.app}>
         <Helmet {...config.app.head} />