chore(lint): follow new airbnb eslint rules

examples/custom-cache.js

@@ -10,23 +10,28 @@ class FsCache extends BaseCache {
     fs.writeFileSync(this._settings.file, '{}');
     return Promise.resolve();
   }
+
   clear() {
     fs.unlinkSync(this._settings.file);
     return Promise.resolve();
   }
+
   close() {
     return Promise.resolve();
   }
+
   get(key) {
     const obj = JSON.parse(fs.readFileSync(this._settings.file));
     return Promise.resolve(obj[key] || null);
   }
+
   set(key, value) {
     const obj = JSON.parse(fs.readFileSync(this._settings.file));
     obj[key] = value;
     fs.writeFileSync(this._settings.file, JSON.stringify(obj));
     return Promise.resolve();
   }
+
   enqueue(key, value, priority) {
     const obj = JSON.parse(fs.readFileSync(this._settings.file));
     const queue = obj[key] || [];
@@ -37,6 +42,7 @@ class FsCache extends BaseCache {
     fs.writeFileSync(this._settings.file, JSON.stringify(obj));
     return Promise.resolve();
   }
+
   dequeue(key) {
     const obj = JSON.parse(fs.readFileSync(this._settings.file));
     const queue = obj[key] || [];
@@ -45,11 +51,13 @@ class FsCache extends BaseCache {
     if (!item) return Promise.resolve(null);
     return Promise.resolve(item.value);
   }
+
   size(key) {
     const obj = JSON.parse(fs.readFileSync(this._settings.file));
     if (!obj[key]) return Promise.resolve(0);
     return Promise.resolve(obj[key].length);
   }
+
   remove(key) {
     const obj = JSON.parse(fs.readFileSync(this._settings.file));
     delete obj[key];

examples/custom-exporter.js

@@ -17,6 +17,7 @@ class InspectExporter extends BaseExporter {
   }
 
   writeHeader() {}
+
   writeFooter() {}
 }
 

lib/hccrawler.js

@@ -554,6 +554,7 @@ class HCCrawler extends EventEmitter {
     const page = await this._browser.newPage();
     return new Crawler(page, options, depth, previousUrl);
   }
+
   /**
    * @param {!Crawler} crawler
    * @return {!Promise<!Object>}

lib/helper.js

@@ -76,7 +76,7 @@ class Helper {
     const { protocol } = parse(url);
     if (includes(['http:', 'https:'], protocol)) {
       return url.split('#')[0];
-    } else if (!protocol) {
+    } else if (!protocol) { // eslint-disable-line no-else-return
       return resolve(baseUrl, url).split('#')[0];
     }
     return null;

lib/priority-queue.js

@@ -1,5 +1,5 @@
-const AsyncEventEmitter = require('./async-events');
 const noop = require('lodash/noop');
+const AsyncEventEmitter = require('./async-events');
 const { tracePublicAPI } = require('./helper');
 
 const KEY = 'queue';