Sort an array of objects or ObjectIDs based on another array of ObjectIDs.
Because MongoDB can't do this themselves without some crazy ass hacks.
var sort = require('sort')
var arr = sort([
ObjectId(2),
ObjectId(10), {
_id: ObjectId(3),
}
], [
ObjectId(1),
ObjectId(2),
ObjectId(3),
ObjectId(4),
ObjectId(5),
ObjectId(6),
ObjectId(7),
ObjectId(8),
ObjectId(9),
ObjectId(10),
])
arr === [
ObjectId(2), {
_id: ObjectId(3),
},
ObjectId(10),
]