diff --git a/.eslintrc b/.eslintrc
index 1bd5d05c88..95b90ba253 100644
--- a/.eslintrc
+++ b/.eslintrc
@@ -50,6 +50,7 @@
 		"no-shadow": "off",
 		"no-script-url": "off",
 		"no-use-before-define": "off",
+		"default-case": "off",
 
 		// "linebreak-style": "off",
 		// "one-var": "off",
@@ -72,9 +73,8 @@
 		"radix": "off",
 		"no-else-return": "off",
 		"no-useless-escape": "off",
-		"block-scoped-var": "off",
-		"operator-assignment": "off",
-		"default-case": "off",
+		// "block-scoped-var": "off",
+		// "operator-assignment": "off",
 		// "yoda": "off",
 		// "no-loop-func": "off",
 		// "no-void": "off",
diff --git a/public/src/client/topic/posts.js b/public/src/client/topic/posts.js
index 5023eb54e6..689d443ad3 100644
--- a/public/src/client/topic/posts.js
+++ b/public/src/client/topic/posts.js
@@ -311,7 +311,7 @@ define('forum/topic/posts', [
 
 				var imageRect = this.getBoundingClientRect();
 				if (imageRect.top < threshold) {
-					scrollTop = scrollTop + (newHeight - oldHeight);
+					scrollTop += newHeight - oldHeight;
 					$(window).scrollTop(scrollTop);
 				}
 
diff --git a/public/src/modules/helpers.js b/public/src/modules/helpers.js
index 40fed9da2b..2796b8d94e 100644
--- a/public/src/modules/helpers.js
+++ b/public/src/modules/helpers.js
@@ -62,8 +62,8 @@
 	};
 
 	helpers.stripTags = function (str) {
-		if (typeof S !== 'undefined') {
-			return S(String(str)).stripTags().s;
+		if (typeof window !== 'undefined' && window.S) {
+			return window.S(String(str)).stripTags().s;
 		} else {
 			var S = require('string');
 			return S(String(str)).stripTags().s;
diff --git a/src/batch.js b/src/batch.js
index 19595df07e..cb3fd298a1 100644
--- a/src/batch.js
+++ b/src/batch.js
@@ -95,7 +95,7 @@ exports.processArray = function (array, process, options, callback) {
 				if (err) {
 					return next(err);
 				}
-				start = start + batch;
+				start += batch;
 				if (options.interval) {
 					setTimeout(next, options.interval);
 				} else {
diff --git a/src/coverPhoto.js b/src/coverPhoto.js
index b86d032a24..024ae48f20 100644
--- a/src/coverPhoto.js
+++ b/src/coverPhoto.js
@@ -20,7 +20,7 @@ function getCover(type, id) {
 		if (typeof id === 'string') {
 			id = (id.charCodeAt(0) + id.charCodeAt(1)) % covers.length;
 		} else {
-			id = id % covers.length;
+			id %= covers.length;
 		}
 
 		return covers[id];
diff --git a/src/database/mongo/hash.js b/src/database/mongo/hash.js
index e253135c47..57c72cdc91 100644
--- a/src/database/mongo/hash.js
+++ b/src/database/mongo/hash.js
@@ -77,8 +77,9 @@ module.exports = function (db, module) {
 		var _fields = {
 			_id: 0,
 		};
+		var i;
 
-		for (var i = 0; i < fields.length; i += 1) {
+		for (i = 0; i < fields.length; i += 1) {
 			fields[i] = helpers.fieldToString(fields[i]);
 			_fields[fields[i]] = 1;
 		}
diff --git a/src/pagination.js b/src/pagination.js
index c0332ebd14..3e57c5b201 100644
--- a/src/pagination.js
+++ b/src/pagination.js
@@ -26,7 +26,8 @@ pagination.create = function (currentPage, pageCount, queryObj) {
 	if (startPage > pageCount - 5) {
 		startPage -= 2 - (pageCount - currentPage);
 	}
-	for (var i = 0; i < 5; i += 1) {
+	var i;
+	for (i = 0; i < 5; i += 1) {
 		pagesToShow.push(startPage + i);
 	}
 
diff --git a/src/routes/index.js b/src/routes/index.js
index 1091a50fe9..86c7960f6a 100644
--- a/src/routes/index.js
+++ b/src/routes/index.js
@@ -97,8 +97,11 @@ module.exports = function (app, middleware, hotswapIds) {
 	var relativePath = nconf.get('relative_path');
 	var ensureLoggedIn = require('connect-ensure-login');
 
+	var idx;
+	var x;
+
 	if (Array.isArray(hotswapIds) && hotswapIds.length) {
-		for (var idx, x = 0; x < hotswapIds.length; x += 1) {
+		for (x = 0; x < hotswapIds.length; x += 1) {
 			idx = routers.push(express.Router()) - 1;
 			routers[idx].hotswapId = hotswapIds[x];
 		}
diff --git a/src/socket.io/categories.js b/src/socket.io/categories.js
index b1c95af7e9..1678b553bf 100644
--- a/src/socket.io/categories.js
+++ b/src/socket.io/categories.js
@@ -94,7 +94,7 @@ SocketCategories.loadMore = function (socket, data, callback) {
 		var start = Math.max(0, parseInt(data.after, 10));
 
 		if (data.direction === -1) {
-			start = start - (reverse ? infScrollTopicsPerPage : -infScrollTopicsPerPage);
+			start -= reverse ? infScrollTopicsPerPage : -infScrollTopicsPerPage;
 		}
 
 		var stop = start + infScrollTopicsPerPage - 1;