[eslint config] [breaking] enable react/require-render-return

packages/eslint-config-airbnb/rules/react.js

@@ -137,6 +137,9 @@ module.exports = {
     // Restrict file extensions that may be required
     // https://github.com/yannickcr/eslint-plugin-react/blob/master/docs/rules/require-extension.md
     'react/require-extension': [0, { 'extensions': ['.jsx'] }],
+    // Require render() methods to return something
+    // https://github.com/yannickcr/eslint-plugin-react/pull/502
+    'react/require-render-return': 2,
     // Prevent extra closing tags for components without children
     // https://github.com/yannickcr/eslint-plugin-react/blob/master/docs/rules/self-closing-comp.md
     'react/self-closing-comp': 2,

react/README.md

@@ -399,6 +399,20 @@
     }
     ```
 
+  - Be sure to return a value in your `render` methods. eslint: [`require-render-return`](https://github.com/yannickcr/eslint-plugin-react/pull/502)
+
+    ```jsx
+    // bad
+    render() {
+      (<div />);
+    }
+
+    // good
+    render() {
+      return (<div />);
+    }
+    ```
+
 ## Ordering
 
   - Ordering for `class extends React.Component`: