[REBOL] The map function
From: sharriff::aina::med-iq::de at: 8-Nov-2000 8:12
Hi Andrew!
USAGE:
MAP Arg1 Arg2 /Only
DESCRIPTION:
Maps a function to all elements of a block.
MAP is a function value.
ARGUMENTS:
Arg1 -- (Type: any-function block)
Arg2 -- (Type: any-function block)
REFINEMENTS:
/Only -- Inserts the result of the function as a series.
(SPECIAL ATTRIBUTES)
throw
catch
>> adder: func [ a b ] [ a + b ]
>> testblock: [ "element1" "element2" ]
== ["element1" "element2"]
>> map testblock adder
** Script Error: adder is missing its a argument.
** Where: map testblock adder
>> printer: does [print "ho"]
>> printer
ho
>> map [testblock] printer
ho
** Script Error: map expected Arg2 argument of type: any-function block.
** Where: map [testblock] printer
>> map [testblock] [printer]
** Script Error: Cannot use "Map block!" on "block!" value.
** Where: map [testblock] [printer]
>> map testblock [printer]
** Script Error: Cannot use "Map block!" on "block!" value.
** Where: map testblock [printer]
>>
According to the MAP help, it takes the types any-function block or block?
what am I doing wrong?
Sharriff Aina
med.iq information & quality in healthcare AG
www.med-iq.de
