Fix eslint errors

components/ReadNext.jsx

@@ -1,28 +1,33 @@
-import React from 'react';
-import { Link } from 'react-router';
-import { prune, include as includes } from 'underscore.string';
-import find from 'lodash/collection/find';
+import React from 'react'
+import { Link } from 'react-router'
+import { prune, include as includes } from 'underscore.string'
+import find from 'lodash/collection/find'
 import { rhythm, fontSizeToMS } from 'utils/typography'
-import { link } from 'gatsby-helpers'
 
-export default class extends React.Component {
-  render() {
-    let body, html, nextPost, readNext;
-    readNext = this.props.post.readNext;
-    if (readNext != null) {
-      nextPost = find(this.props.pages, function(page) {
-        return includes(page.path, readNext.slice(1, -1));
-      });
+export default class ReadNext extends React.Component {
+  propTypes () {
+    return {
+      post: React.PropTypes.object,
+      pages: React.PropTypes.object,
+    }
+  }
+  render () {
+    const readNext = this.props.post.readNext
+    let nextPost
+    if (readNext !== null) {
+      nextPost = find(this.props.pages, (page) =>
+        includes(page.path, readNext.slice(1, -1))
+      )
     }
     if (!nextPost) {
-      return React.createElement("noscript", null);
+      return React.createElement('noscript', null)
     } else {
-      nextPost = find(this.props.pages, function(page) {
-        return includes(page.path, readNext.slice(1, -1));
-      });
+      nextPost = find(this.props.pages, (page) =>
+        includes(page.path, readNext.slice(1, -1))
+      )
       // Create pruned version of the body.
-      html = nextPost.data.body;
-      body = prune(html.replace(/<[^>]*>/g, ''), 200);
+      const html = nextPost.data.body
+      const body = prune(html.replace(/<[^>]*>/g, ''), 200)
 
       return (
         <div>
@@ -31,19 +36,19 @@ export default class extends React.Component {
               margin: 0,
               fontSize: fontSizeToMS(-1).fontSize,
               lineHeight: fontSizeToMS(-1).lineHeight,
-              letterSpacing: -0.5
+              letterSpacing: -0.5,
             }}
           >
             READ THIS NEXT:
           </h6>
           <h3
             style={{
-              marginBottom: rhythm(1/4)
+              marginBottom: rhythm(1/4),
             }}
           >
             <Link
               to={nextPost.path}
-              query={{readNext: true}}
+              query={{ readNext: true }}
             >
               {nextPost.data.title}
             </Link>
@@ -51,7 +56,7 @@ export default class extends React.Component {
           <p>{body}</p>
           <hr />
         </div>
-      );
+      )
     }
   }
 }