iskm/learnxinyminutes-docs
1
0
Fork 0
mirror of https://github.com/adambard/learnxinyminutes-docs.git synced 2024-12-23 17:41:41 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

[haskell.html.markdown] Changed explanation for Haskell '$' operator

Browse Source
This commit is contained in:
Cornel Punga 2015-03-25 18:08:32 +02:00
parent 9fb21f1ce4
commit 2f43da109f
1 changed files with 6 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
haskell.html.markdown
View File

@ -202,10 +202,12 @@ foo = (*5) . (+10)
foo 5 -- 75
-- fixing precedence
-- Haskell has another function called `$`. Anything appearing after it will
-- take precedence over anything that comes before.
-- You can use `$` (often in combination with `.`)
-- to get rid of a lot of parentheses:
-- Haskell has another operator called `$`. This operator applies a function
-- to a given parameter. In contrast to standard function application, which
-- has highest possible priority of 10 and is left-associative, the `$` operator
-- has priority of 0 and is right-associative. Such a low priority means that
-- all other operators on both sides of `$` will be evaluated before applying
-- the `$`.
-- before
(even (fib 7)) -- false