functional programming - What are some intuitions that support calling the Maybe constructor in Haskell "Just"? -


the intuition of optional type maybe int either there no int (thus, there's nothing there) or there some int; there there.

it makes sense me call type constructor "negative" case nothing, since means -- there's no int there. why use word just in case emphasis on actually being there?

to me, word "just" carries connotation thing it's describing less alternative; opposite of being there; example,

a: doing tonight?

b: no; i'm just gonna stay in , watch tv.

a: did investigate creepy ghost sounds around house?

b: yeah, turns out just owl.

clearly i'm lacking whatever intuition naming choice based on. it? because me, word just means opposite of how it's used in maybe type.


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