To remember the data type of JS in one sentence U SO NB ！

U. Yaguolun likes to use it instead of You, which means you 。

SO, which means So, so, very, very …

NB, I don't need to tell you, of course Cattle batch Ah!!!

>What begins with U is undefined

>With S string And ES6 symbol

>Objects starting with O object

>There are two that start with N, number and null

>What starts with B can be thought of boolean

No, no, no, no one really can't remember after reading it, can they?