variable name conflict

src/cache.js

@@ -179,23 +179,23 @@ const getPosts = (ids) => {
 const getUsersPosts = (user) => {
     const fast = users_posts[user] 
     if (fast === NO_CACHE) {
-        const posts = database.getUsersPosts(user)
-        if (posts === undefined) {
+        const p = database.getUsersPosts(user)
+        if (p === undefined) {
             users_posts[user] = NO_VALUE
         } else {
             const slow = []
-            for (const post in posts) {
-                slow.push[post.id]
+            for (const post of p) {
+                slow.push(post.id)
                 if (posts[post.id] === NO_CACHE) {
                     posts[post.id] = post
                 }
             }
             users_posts[user] = slow
         }
-        return posts
+        return p
     } else {
         const posts = getPosts(fast)
-        return Object.keys(posts).map(k => posts[k]).filler(p => p !== null)
+        return Object.keys(posts).map(k => posts[k]).filter(p => p !== undefined)
     }
 }