diff options
Diffstat (limited to 'haskell.html.markdown')
| -rw-r--r-- | haskell.html.markdown | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/haskell.html.markdown b/haskell.html.markdown index f3baa9a5..1a4cdc67 100644 --- a/haskell.html.markdown +++ b/haskell.html.markdown @@ -152,10 +152,10 @@ fib x = fib (x - 1) + fib (x - 2) -- Pattern matching on tuples: foo (x, y) = (x + 1, y + 2) --- Pattern matching on arrays. Here `x` is the first element --- in the array, and `xs` is the rest of the array. We can write +-- Pattern matching on lists. Here `x` is the first element +-- in the list, and `xs` is the rest of the list. We can write -- our own map function: -myMap func [x] = [func x] +myMap func [] = [] myMap func (x:xs) = func x:(myMap func xs) -- Anonymous functions are created with a backslash followed by @@ -164,7 +164,7 @@ myMap (\x -> x + 2) [1..5] -- [3, 4, 5, 6, 7] -- using fold (called `inject` in some languages) with an anonymous -- function. foldl1 means fold left, and use the first value in the --- array as the initial value for the accumulator. +-- list as the initial value for the accumulator. foldl1 (\acc x -> acc + x) [1..5] -- 15 ---------------------------------------------------- |