diff --git a/app/assets/javascripts/discourse/controllers/user_invited_controller.js b/app/assets/javascripts/discourse/controllers/user_invited_controller.js
index db07e01ea07..fac3c5be298 100644
--- a/app/assets/javascripts/discourse/controllers/user_invited_controller.js
+++ b/app/assets/javascripts/discourse/controllers/user_invited_controller.js
@@ -44,8 +44,7 @@ Discourse.UserInvitedController = Ember.ArrayController.extend({
     @property showSearch
   **/
   showSearch: function() {
-    if (Em.isNone(this.get('searchTerm')) && this.get('model.length') === 0) { return false; }
-    return true;
+    return !(Em.isNone(this.get('searchTerm')) && this.get('model.length') === 0);
   }.property('searchTerm', 'model.length'),
 
   /**
diff --git a/app/assets/javascripts/discourse/dialects/dialect.js b/app/assets/javascripts/discourse/dialects/dialect.js
index d3d35b645d5..6dfe71cfb2c 100644
--- a/app/assets/javascripts/discourse/dialects/dialect.js
+++ b/app/assets/javascripts/discourse/dialects/dialect.js
@@ -120,10 +120,10 @@ function parseTree(tree, path, insideCounts) {
 **/
 function invalidBoundary(args, prev) {
 
-  if (!args.wordBoundary && !args.spaceBoundary) { return; }
+  if (!args.wordBoundary && !args.spaceBoundary) { return false; }
 
   var last = prev[prev.length - 1];
-  if (typeof last !== "string") { return; }
+  if (typeof last !== "string") { return false; }
 
   if (args.wordBoundary && (last.match(/(\w|\/)$/))) { return true; }
   if (args.spaceBoundary && (!last.match(/\s$/))) { return true; }
@@ -149,10 +149,9 @@ Discourse.Dialect = {
   cook: function(text, opts) {
     if (!initialized) { initializeDialects(); }
     dialect.options = opts;
-    var tree = parser.toHTMLTree(text, 'Discourse'),
-        html = parser.renderJsonML(parseTree(tree));
+    var tree = parser.toHTMLTree(text, 'Discourse');
 
-    return html;
+    return parser.renderJsonML(parseTree(tree));
   },
 
   /**
diff --git a/app/assets/javascripts/discourse/lib/formatter.js b/app/assets/javascripts/discourse/lib/formatter.js
index 946aebc3df3..337a81f8dd2 100644
--- a/app/assets/javascripts/discourse/lib/formatter.js
+++ b/app/assets/javascripts/discourse/lib/formatter.js
@@ -237,7 +237,7 @@ relativeAgeMediumSpan = function(distance, leaveAgo) {
 
 relativeAgeMedium = function(date, options){
   var displayDate, fiveDaysAgo, oneMinuteAgo, fullReadable, leaveAgo;
-  var wrapInSpan = options.wrapInSpan === false ? false : true;
+  var wrapInSpan = options.wrapInSpan !== false;
 
   leaveAgo = options.leaveAgo;
   var distance = Math.round((new Date() - date) / 1000);
diff --git a/app/assets/javascripts/discourse/lib/mobile.js b/app/assets/javascripts/discourse/lib/mobile.js
index c1b904970fe..902053b71fd 100644
--- a/app/assets/javascripts/discourse/lib/mobile.js
+++ b/app/assets/javascripts/discourse/lib/mobile.js
@@ -14,7 +14,7 @@ Discourse.Mobile = {
     this.mobileView = $html.hasClass('mobile-view');
 
     if (localStorage && localStorage.mobileView) {
-      var savedValue = (localStorage.mobileView === 'true' ? true : false);
+      var savedValue = (localStorage.mobileView === 'true');
       if (savedValue !== this.mobileView) {
         this.reloadPage(savedValue);
       }
diff --git a/app/assets/javascripts/discourse/lib/user_search.js b/app/assets/javascripts/discourse/lib/user_search.js
index c0a11c80f70..c9756046cbb 100644
--- a/app/assets/javascripts/discourse/lib/user_search.js
+++ b/app/assets/javascripts/discourse/lib/user_search.js
@@ -54,8 +54,7 @@ Discourse.UserSearch = {
           users.push(u);
           results.push(u);
         }
-        if (results.length > limit) return false;
-        return true;
+        return results.length <= limit;
       });
 
       _.each(r.groups,function(g) {
diff --git a/app/assets/javascripts/discourse/models/composer.js b/app/assets/javascripts/discourse/models/composer.js
index f05797533fb..4416bf5c01a 100644
--- a/app/assets/javascripts/discourse/models/composer.js
+++ b/app/assets/javascripts/discourse/models/composer.js
@@ -126,14 +126,10 @@ Discourse.Composer = Discourse.Model.extend({
     // reply is always required
     if (this.get('missingReplyCharacters') > 0) return true;
 
-    if (this.get('canCategorize') &&
+    return this.get('canCategorize') &&
         !Discourse.SiteSettings.allow_uncategorized_topics &&
         !this.get('categoryId') &&
-        !Discourse.User.currentProp('staff')) {
-      return true;
-    }
-
-    return false;
+        !Discourse.User.currentProp('staff');
   }.property('loading', 'canEditTitle', 'titleLength', 'targetUsernames', 'replyLength', 'categoryId', 'missingReplyCharacters'),
 
   /**
diff --git a/app/assets/javascripts/discourse/models/post.js b/app/assets/javascripts/discourse/models/post.js
index f681d1f4725..a41377b15ca 100644
--- a/app/assets/javascripts/discourse/models/post.js
+++ b/app/assets/javascripts/discourse/models/post.js
@@ -103,11 +103,10 @@ Discourse.Post = Discourse.Model.extend({
   }.property('updated_at'),
 
   flagsAvailable: function() {
-    var post = this,
-        flags = Discourse.Site.currentProp('flagTypes').filter(function(item) {
+    var post = this;
+    return Discourse.Site.currentProp('flagTypes').filter(function(item) {
       return post.get("actionByName." + (item.get('name_key')) + ".can_act");
     });
-    return flags;
   }.property('actions_summary.@each.can_act'),
 
   actionsHistory: function() {
diff --git a/app/assets/javascripts/discourse/models/topic.js b/app/assets/javascripts/discourse/models/topic.js
index ca4858cd49c..bb7b60fe6e5 100644
--- a/app/assets/javascripts/discourse/models/topic.js
+++ b/app/assets/javascripts/discourse/models/topic.js
@@ -168,8 +168,7 @@ Discourse.Topic = Discourse.Model.extend({
     if (!wordCount) return;
 
     // Avg for 500 words per minute when you account for skimming
-    var minutes = Math.floor(wordCount / 500.0);
-    return minutes;
+    return Math.floor(wordCount / 500.0);
   }.property('word_count'),
 
   toggleStar: function() {