typeof(null) ==>object null instanceof Object ==>false

 typeof(null) ==>object    null  instanceof Object ==>false  

typeof(null) === Object
false

 

 

 

posted @ 2018-01-29 21:25  ︶ㄣ鳯躌氷瀚  阅读(403)  评论(0)    收藏  举报