haskell - Implicit pattern matching the first 2 items of a list -
is there way in implicit way:
(originalpath:extractpath:ignoredargs) <- getargs
considering need first 2 args , ignore others anyway.
this curiosity/exploring/learning question (just started haskell), ignoredargs
not harm if it's left this.
i tried
(originalpath:extractpath) <- getargs
but fails since extractpath
of [string]
type (instead of string
)
use wildcard, _
(originalpath:extractpath:_) <- getargs
to ignore after first 2 arguments.
you need have there have 2 names bound string
s, , wildcard pattern (underscore) way tell compiler , human readers of code not interested in further arguments.
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