1.11.1

1. Avoid lexical declarations in case/default clauses
   refer to http://eslint.org/docs/rules/no-case-declarations, as const/let variables share across switch cases, which may lead to redeclaration of the same variables/namespace pollution, so you are required to define a block to embrace your case if you define const/let on that case
2. Disallow unneeded ternary expressions
   refer to http://eslint.org/docs/rules/no-unneeded-ternary