CHANGELOG.md

v1.1.0

New Functions

Use singleton to create streams with a single value.

singleton 42
    |> toList == [42]

Use cons to add a value to the beginning of a stream.

cons (singleton 1) (singleton 2)
    |> toList == [1, 2]

Use append to combine two streams.

append (range 1 3) (range 4 6)
    |> toList == [1, 2, 3, 4, 5, 6]

Use empty to build from a stream with no values.

empty
  |> toList == []

Use takeWhile to take values as long as a predicate function returns true.

range 1 10
    |> takeWhile (\n -> n < 6)
    |> toList == [1, 2, 3, 4, 5]

Use concatMap to map values to streams and flatten the resulting streams.

-- Convert list of words to stream of letters
["hello", "there"]
    |> fromList
    |> concatMap (\word -> word |> String.split "" |> fromList)
    |> toList == ["h", "e", "l", "l", "o", "t", "h", "e", "r", "e"]

-- Flatten inner stream ranges
range 1 3
    |> concatMap (\n -> range n (n + 2))
    |> toList == [1, 2, 3, 2, 3, 4, 3, 4, 5]

-- Skip values with `empty`
range 1 10
    |> concatMap
        (\n ->
            if n < 6 then
                empty
            else
                singleton n
        )
    |> toList [6, 7, 8, 9, 10]

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v1.0.1

Fixes

• Remove incorrect example in range docs.

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v1.0.0

Initial release!