Delete empty arrays from data file

scripts/build-data.js

@@ -93,6 +93,14 @@ emojiData.forEach((datum) => {
   delete datum.short_name
   delete datum.category
   delete datum.sort_order
+
+  for (let key in datum) {
+    let value = datum[key]
+
+    if (Array.isArray(value) && !value.length) {
+      delete datum[key]
+    }
+  }
 })
 
 var flags = data.categories[categoriesIndex['Flags']];

src/utils/emoji-index.js

@@ -11,7 +11,7 @@ for (let emoji in data.emojis) {
       { short_names, emoticons } = emojiData,
       id = short_names[0]
 
-  for (let emoticon of emoticons) {
+  for (let emoticon of (emoticons || [])) {
     if (!emoticonsList[emoticon]) {
       emoticonsList[emoticon] = id
     }

src/utils/index.js

@@ -68,6 +68,9 @@ function getData(emoji, skin, set) {
     }
   }
 
+  emojiData.emoticons || (emojiData.emoticons = [])
+  emojiData.variations || (emojiData.variations = [])
+
   if (emojiData.skin_variations && skin > 1 && set) {
     emojiData = JSON.parse(JSON.stringify(emojiData))