is there any reason to prefer null over empty coll...

# announcements

[tipsy]

is there any reason to prefer null over empty collection as return value in kotlin?

[lex]

I think it is not specific for any language, it is related for business logic

[lex]

typical solution is return empty collection for collections and null for value

[diesieben07]

There are situations where both null and "empty collection" can be useful values, e.g. null meaning "not initialized yet" and "empty collection" meaning "initialized, but empty".

[lex]

yes, null for collections as "not initialized" can be (and should be) for domain object properties, but for business logic results (data, returned from services, etc) should be empty collection