用Underscore.js

intersection

_.intersection(*arrays)
Computes the list of values that are the intersection of all the arrays. Each value in the result is present in each of the arrays.

_.intersection([1, 2, 3], [101, 2, 1, 10], [2, 1]);
=> [1, 2]

difference

_.difference(array, *others)
Similar to without, but returns the values from array that are not present in the otherarrays.

_.difference([1, 2, 3, 4, 5], [5, 2, 10]);
=> [1, 3, 4]

但是这个只能用于原生类型，如果想要用于对象数组的话，丢个链接在这里

http://stackoverflow.com/questions/8672383/how-to-use-underscores-intersection-on-objects