diff --git a/README.md b/README.md
index 32c966ce98..9909ca6a51 100644
--- a/README.md
+++ b/README.md
@@ -1245,29 +1245,12 @@ Other Style Guides
```
- [15.4](#15.4) For more information see [Truth Equality and JavaScript](http://javascriptweblog.wordpress.com/2011/02/07/truth-equality-and-javascript/#more-2108) by Angus Croll.
- - [15.5](#15.5) Use braces to create blocks in `case` and `default` clauses that contain lexical declarations (e.g. `let`, `const`, `function`, and `class`).
-
- > Why? Lexical declarations are visible in the entire `switch` block but only get initialized when assigned, which only happens when its `case` is reached. This causes problems when multiple `case` clauses attempt to define the same thing.
+ - [15.5](#15.5) Do not use braces to create blocks in `case` and `default` clauses, even if they contain lexical declarations (e.g. `let`, `const`, `function`, and `class`).
eslint rules: [`no-case-declarations`](http://eslint.org/docs/rules/no-case-declarations.html).
```javascript
// bad
- switch (foo) {
- case 1:
- let x = 1;
- break;
- case 2:
- const y = 2;
- break;
- case 3:
- function f() {}
- break;
- default:
- class C {}
- }
-
- // good
switch (foo) {
case 1: {
let x = 1;
@@ -1288,6 +1271,21 @@ Other Style Guides
class C {}
}
}
+
+ // good
+ switch (foo) {
+ case 1:
+ let x = 1;
+ break;
+ case 2:
+ const y = 2;
+ break;
+ case 3:
+ function f() {}
+ break;
+ default:
+ class C {}
+ }
```
- [15.5](#15.5) Ternaries should not be nested and generally be single line expressions.
@@ -1489,12 +1487,12 @@ Other Style Guides
## Whitespace
- - [18.1](#18.1) Use soft tabs set to 2 spaces. eslint: [`indent`](http://eslint.org/docs/rules/indent.html) jscs: [`validateIndentation`](http://jscs.info/rule/validateIndentation)
+ - [18.1](#18.1) Use soft tabs set to 4 spaces. eslint: [`indent`](http://eslint.org/docs/rules/indent.html) jscs: [`validateIndentation`](http://jscs.info/rule/validateIndentation)
```javascript
// bad
function foo() {
- ∙∙∙∙const name;
+ ∙∙const name;
}
// bad
@@ -1504,7 +1502,7 @@ Other Style Guides
// good
function baz() {
- ∙∙const name;
+ ∙∙∙∙const name;
}
```