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Haskell Language



이전 ν”„λ‘œκ·Έλž˜λ°μž”μΉ˜ λ•Œ μ‚¬μš©ν–ˆμ—ˆλ˜ FunctionalLanguage.

2. Haskell Interpreters

  • 보톡 hugs와 ghciλΌ λ§Žμ΄ μ“΄λ‹€.

3. μ“°λ ˆλ“œ

  • μ € μœ„μ—λ³΄λ©΄, featuring static typing, higher-order functions, polymorphism, type classes and modadic effects 라고 μžˆλŠ”λ°, 이것듀이 μ•„λ§ˆ haskell language의 큰 νŠΉμ§•λ“€μ΄ μ•„λ‹κΉŒ ν•œλ‹€. 각각에 λŒ€ν•΄μ„œ μ•Œμ•„λ‘λŠ”κ²Œ 도움이 될λ“. (monadκ΄€λ ¨μžλ£Œ)- μž„μΈνƒ

  • Prelude> :t 3
    • 3 :: (Num t) => t
      • 였늘 ꡉμž₯ν•œ 사싀 ν•˜λ‚˜λΌ μ•Œμ•„λ²„λ Έλ‹€. Haskellμ—μ„œ 값인μ„λ‘œ μ•Œμ•˜λ˜ 3도.. ν•¨μˆ˜μ˜€λ˜ 것이닀... 덜덜덜;; - μž„μΈνƒ
        • (Num t)λŠ” t의 μžλ£Œν˜•μ΄ Num이라고 μ•Œλ €μ£ΌλŠ” κ²ƒμ΄μ—μš”. ν•¨μˆ˜λŠ” ν™”μ‚΄ν‘œκ°€ -> 둜 λ‚˜μ˜€λ„μš”.^^
          • μ•„ κ·ΈλŸ°κ±΄κ°€? λ•‘μŠ€~

ν•¨μˆ˜λΌ μ •μ˜ν•  λ•Œ ν•œ 곳에 λͺ¨μ•„두어야 ν•œλ‹€. λ”°λΌμ„œ λ‹€μŒμ€ 였λ₯˜μ΄λ‹€.
~cpp
f x = x
g x = x
f x = x
    Multiple declarations of `Main.f'
    Declared at: test.hs:1:0
                 test.hs:3:0

μ—°μ‚°μž 처럼 λ³΄μ΄λŠ” 녀석듀도 ν•¨μˆ˜μ΄λ‹€.
~cpp
Prelude> :t (<=)
(<=) :: (Ord a) => a -> a -> Bool


μ–Έμ–΄μ˜ μ’…λ₯˜
λ¨Έμ‹  μΉœν™”μ Cκ°€μ±
MachineLangaugeAssemblyCC++Objective-CObjective-C++씨앗
객체지ν–₯ν•¨μˆ˜ν˜• μ–Έμ–΄
SmallTalkJAVAC#Lispμ±HaskellScala
μŠ€ν¬λ¦½νŠΈμ–Έμ–΄
JavaScriptCoffeeScriptPerlLuaPHPPythonPyPyRubyShellScriptMATLAB
λΈλΆ„λ₯˜
ErlangGoJOCamlScalaRCSSMLAdaProlog
ScratchRustless
[http]ν”„λ‘œκ·Έλž˜λ° μ–Έμ–΄ λͺ©λ‘



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