Functional programming

Rustom Mody rustompmody at gmail.com
Mon Mar 3 14:51:21 CET 2014


On Monday, March 3, 2014 7:18:00 PM UTC+5:30, Rustom Mody wrote:

> Unfortunately modern versions give a less helpful error message
> '++' is list-append, '?' is the prompt

> ? [1,2] + [[3,4],[5]]                   

Whoops Wrong cut-paste!

? [1,2] ++ [[3,4],[5]]
ERROR: Type error in application
*** expression     : [1,2] ++ [[3,4],[5]]
*** term           : [1,2]
*** type           : [Int]
*** does not match : [[Int]]

? 




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