intersection between two arrays of objects

I have two arrays of objects:

user and usersActive

I want to find the intersection between these to arrays based on a property (the id) of the objects in these arrays

Example:

user = [ user(1) user(2) ... user(n)]

usersActive = [user(1) user(2) ... user(p)]

(p<n)

user(j).id in user is equal to user(k).id in usersActive, so on and so forth.

after that, I want to change the user(j).id in user by user(k).id usersActive

Answer 1

[Star Strider]

See if the intersect (link) funciton will do what you want.