idea警告：'xxx==false' can be simplified to '!xxx'

1. 当程序中存在类似如下判断代码时

if ( label == true ){    ... ...}

2. idea或部分ide检测代码时会出现此警告

'label==false' can be simplified to '!label' less... (Ctrl+F1) Reports pointless or pointlessly complicated boolean expressions. Such expressions include anding with true, oring with false, equality comparison with a boolean literal, or negation of a boolean literal. Such expressions may be the result of automated refactorings not completely followed through to completion, and in any case are unlikely to be what the developer intended to do.

3. 修改：

if ( label ){    ... ...}

4. 参考地址：

http://www.itwendao.com/article/detail/66036.html

5. 其他参考：

https://github.com/eslint/eslint/issues/667