Re: Haskell $ like operator in OCaml

Article View: fa.caml

Article #80

#80

From: utizoc
Date: Thu, 04 Oct 2012 00:57

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On Friday, September 28, 2012 3:01:42 AM UTC-3, Evrim Ulu wrote:
> Hello,
> 
> 
> 
> Is there an equivalent operator to $ in Haskell?
> 
> 
> 
> let f1 a = a+1 in                                                                                                                         
> 
> let f2 a = a+2 in                                                                                                                         
> 
> f1 (f2 3);;
> 
> 
> 
> I would like to write f1 $ f2 3 instead of f1 (f2 3).
> 
> 
> 
> Thanks,
> 
> evrim.

Try this:

let ($) f x = f x;;

Repl:

# let ($) f x = f x;;
val ( $ ) : ('a -> 'b) -> 'a -> 'b = <fun>
# let f1 a = a+1 in
let f2 a = a+2 in
f1 $ f2 3;;     
- : int = 6

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