ion1

Installing GHC under the home directory

1. Install stack.
2. Run stack setup as a normal user. This will install GHC for you (under ~/.stack).
3. Run stack ghci to start ghci. Please see the rest of the page linked above on how to use stack to create and build projects.

shangaslammi

s x y z = x z (y z)
k x y   = x
i       = s k k
c       = s (s (k (s (k s) k)) s) (k k)
b       = s (k s) k

hello =
    s(s(k s)(s(k k)(s(k s)(s(k(s(k s)))(s(s(k s)(s(k k)(s(k b)i)))(k(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s
    b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(c k))))))))))))))))))))))))))))))))))))))))))
    )))))))))))))))))))))))))))(s(s(k s)(s(k k)(s(k s)(s(k(s(k s)))(s(s(k s)(s(k k)(s(k b)i)))(k(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s b(s

folone

$ ghci
GHCi, version 7.4.2: http://www.haskell.org/ghc/  :? for help
Loading package ghc-prim ... linking ... done.
Loading package integer-gmp ... linking ... done.
Loading package base ... linking ... done.
Prelude> :l hello-ski.hs 
[1 of 1] Compiling Main             ( hello-ski.hs, interpreted )
Ok, modules loaded: Main.
*Main> main
Hello world!

Fuuzetsu

#!/usr/bin/env bash
cabal configure && cabal build && cabal haddock --hyperlink-source \
                                    --html-location='/package/$pkg-$version/docs' \
                                    --contents-location='/package/$pkg'
S=$?
if [ "${S}" -eq "0" ]; then
    cd "dist/doc/html"
    DDIR="${1}-${2}-docs"
    cp -r "${1}" "${DDIR}" && tar -c -v -z --format=ustar -f "${DDIR}.tar.gz" "${DDIR}"
    CS=$?

laughinghan

• any: magic, ill-behaved type that acts like a combination of never (the proper [bottom type]) and unknown (the proper [top type])
  • Anything except never is assignable to any, and any is assignable to anything at all.
  • Identities: any & AnyTypeExpression = any, any | AnyTypeExpression = any
  • Key TypeScript feature that allows for [gradual typing].
• unknown: proper, well-behaved [top type]
  • Anything at all is assignable to unknown. unknown is only assignable to itself (unknown) and any.
  • Identities: unknown & AnyTypeExpression = AnyTypeExpression, unknown | AnyTypeExpression = unknown

• Prefer over any whenever possible. Anywhere in well-typed code you're tempted to use any, you probably want unknown.