iskm/learnxinyminutes-docs
1
0
Fork 0
mirror of https://github.com/adambard/learnxinyminutes-docs.git synced 2025-04-27 07:33:57 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Added a mention of filter

Browse Source
This commit is contained in:
Evan Hock 2024-12-08 23:14:54 -08:00
parent ed6c2afda2
commit 0d10b10425
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
haskell.md
View File

@ -282,6 +282,9 @@ for [0..5] $ \i -> show i
-- we could've written that like this too:
for [0..5] show
-- filter keeps only the elements in a list that satisfy a condition
filter even [1..10] -- [2, 4, 8, 10]
-- You can use foldl or foldr to reduce a list
-- foldl <fn> <initial value> <list>
foldl (\x y -> 2*x + y) 4 [1,2,3] -- 43