missing implementation about `unique`

[item4]

See 932 line. What is Sizzle's API?

There is no impl, only misplaced text :(

[item4]

I think we can use Set of innerHTML of each element.

[camsong]

where is the line 932?

[item4]

@camsong https://github.com/oneuijs/You-Dont-Need-jQuery/blob/master/README.md#6.2 see unique util

[camsong]

@arcthur

[camsong]

We found that there are rare occasions that need to use unique when play with Virtual DOM, and this method rely on DOM manipulation heavily, so I will remove it for now