class Diff internal

A Differ for comparing one set of values to another When #patch is called, will yield various patches to true up the old values with the new values. see: MovePatch, InsertPatch, UpdatePatch, and DeletePatch

#initialize(before, after) internal

constructor

Arguments

• before - array of before values
• after - array of after values

#patch internal

yields a sequence of patches to make

before the same as after

Returns

Returns nothing