diff --git a/js/.jscsrc b/js/.jscsrc
index 7572481c7f..e8168b8b8c 100644
--- a/js/.jscsrc
+++ b/js/.jscsrc
@@ -1,6 +1,9 @@
 {
+  "disallowEmptyBlocks": true,
   "disallowKeywords": ["with"],
   "disallowLeftStickedOperators": ["?", "+", "-", "/", "*", "=", "==", "===", "!=", "!==", ">", ">=", "<", "<="],
+  "disallowMixedSpacesAndTabs": true,
+  "disallowMultipleLineStrings": true,
   "disallowRightStickedOperators": ["?", "/", "*", ":", "=", "==", "===", "!=", "!==", ">", ">=", "<", "<="],
   "disallowSpaceAfterPrefixUnaryOperators": ["++", "--", "+", "-", "~"],
   "disallowSpaceBeforePostfixUnaryOperators": ["++", "--"],