If I understand how the two work, the only difference between them would
be that group_by assembles the objects into an array, so to access all
the items that match by name,
whereas index_by stores the object directly instead of an array of
objects, thus it can only return one item per key,
items[“name”] would return the only object that has the given attribute
“name”, so index_by should only be used if you don’t expect two items to
have a given attribute of the same value.
My question is, if in your situation index_by is enough, wouldn’t
group_by and items[“name”] yield the same result as index_by
items[“name”]? Isn’t it safer to use group_by anyways incase there are
two or more items that would fall under the same key?
I may be overlooking something, which is why I’m asking, is there any
real purpose for index_by over group_by or have I entirely misunderstood
how the two work? Keeping in mind I have not had the opportunity to use
either yet, just reading about how the two methods work.