1 files changed, 10 insertions, 2 deletions
diff --git a/packages/gitbook-html/lib/langs.js b/packages/gitbook-html/lib/langs.js
index d337e0f..a06d3ee 100755
--- a/packages/gitbook-html/lib/langs.js
+++ b/packages/gitbook-html/lib/langs.js
@@ -1,10 +1,18 @@
 var _ = require('lodash');
 var parseSummary = require('./summary');
 
-// HTML -> Languages
+/**
+    Parse an HTML content into a list of language
+
+    @param {String} html
+    @return {Array}
+*/
 function parseLangs(content) {
     var parts = parseSummary(content).parts;
-    if (parts.length > 0) return parts[0].articles;
+    if (parts.length > 0) {
+        return parts[0].articles;
+    }
+
     return [];
 }