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Merge pull request #206 from zsombornagy/master

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A hopefully better foldp example
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Evan Czaplicki 2013-08-08 13:53:20 -07:00
commit 27ee179626
1 changed files with 2 additions and 1 deletions
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libraries/Signal.elm
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@ -52,7 +52,8 @@ lift8 = Native.Signal.lift8
-- Create a past-dependent signal. Each value given on the input signal will
-- be accumulated, producing a new output value.
--
-- For instance, `(foldp (\\t acc -> acc + 1) 0 (Time.every second))` increments every second.
-- For instance, `(foldp (\\arrows number -> number + arrows.y) 0 Keyboard.arrows)`
-- increments or decrements the accumulated value (which starts at zero) when the up or down arrow keys are pressed.
foldp : (a -> b -> b) -> b -> Signal a -> Signal b
foldp = Native.Signal.foldp