What is the difference between nil and none

Nil determiner No, not any. None pronoun No one, nobody. Nil verb Will not. None pronoun No person. Nil noun Nothing; of no account; worthless; - a term often used for canceling, in accounts or bookkeeping.

None determiner Not any; no. Nil noun A special value for a variable used in certain computer languages to mean no assigned value, to be distinguished from the value zero. None adverb To no extent, in no way. None adverb Not at all. None adverb obsolete No, not. None noun A person without religious affiliation. None noun : the ninth hour after dawn; Christian the religious service appointed to this hour.

None adjective No one; not one; not anything; - frequently used also partitively, or as a plural, not any. None adjective No; not any; - used adjectively before a vowel, in old style; as, thou shalt have none assurance of thy life.

None noun Same as Nones, 2. None noun a canonical hour that is the ninth hour of the day counting from sunrise. None noun a service in the Roman Catholic Church formerly read or chanted at 3 PM the ninth hour counting from sunrise but now somewhat earlier. Popular Comparisons. Adress vs. Comming vs. Label vs. Genius vs. Speech vs. Chief vs. Teat vs. Neice vs. Buisness vs.

This is simply an empty tuple, which is written as. Search by keywords or tags Submit Search Clear search query Additional information about Search by keywords or tags Supported Searches:. What's the Difference Between: nil, void, "" and Empty Collections?

Click again to start watching. How would an empty collection, nil, "" and void even look like in memory? When an object is destroyed does it become a nil or a void? Will that fragment the memory? In normal usage there's no difference, they are interchangeable. The equivalence of. The answer is readily available if you command-click on the word.

Here is what the Swift package reveals:. So in most cases you can use either because optional values should conform to the protocol NilLiteralConvertible although I am not sure about this last point. There is no difference, as. Stack Overflow for Teams — Collaborate and share knowledge with a private group.

Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. What's the difference between testing an optional for "nil" and ". Ask Question. Asked 7 years, 1 month ago.