Elm (programming language): Difference between revisions

Revision as of 18:23, 21 November 2012

Revision as of 02:39, 29 November 2012

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Elm has a small but expressive set of language constructs, including if-expressions, let-expressions, case-expressions, anonymous functions, and list interpolation.

Elm also has both a module system and a foreign function interface for JavaScript.

<source lang="haskell">

-- if-expression

makePositive n = if n < 0 then 0-n else n

-- let-expressions

turing = let picture = fittedImage 200 200 "alan-turing.jpg" in

flow down [ plainText "Alan Turing", picture ]

-- case-expression

isEmpty list = case list of

{ [] -> True

; _ : _ -> False }

-- anonymous functions

keepEvens numbers = filter (\n -> n `mod` 2 == 0) numbers

-- list interpolation

factorial n = product [1..n]

</source>

Elm also has a module system and foreign function interface for JavaScript.

==References==