Why I am forced to write the (Data Constructor) name with first letter in small case?
- by Optimight
Why I am forced to write "liOfLi" in place of "LiOfLi"? Please guide.
code in baby.hs
LiOfLi = [ [1,3,4,5,6,8], [ 12, 13, 15, 16, 19, 20], [23, 24, 25, 45, 56] ]
ghci response:
ghci :l baby
[1 of 1] Compiling Main ( baby.hs, interpreted )
Failed, modules loaded: none.
ghci
baby.hs:29:1: Not in scope: data constructor `LiOfLi'
When changing the initial letter to smaller case
code in baby.hs
liOfLi = [ [1,3,4,5,6,8], [ 12, 13, 15, 16, 19, 20], [23, 24, 25, 45, 56] ]
ghci response:
ghci :l baby
[1 of 1] Compiling Main ( baby.hs, interpreted )
Ok, modules loaded: Main.
Following are the SO questions I refered but I failed to understand the rules/ logic and get the answer for (my) abovementioned question.
Why does Haskell force data constructor's first letter to be upper case?
the variable names need to be lowercase. The official documentation related to this is at haskell.org/onlinereport/intro.html#namespaces – (the SO comment by) Chris Kuklewicz
