summaryrefslogtreecommitdiffhomepage
path: root/elm.html.markdown
diff options
context:
space:
mode:
authorDmitrii Kuznetsov <torgeek@users.noreply.github.com>2021-02-22 18:36:35 +0300
committerGitHub <noreply@github.com>2021-02-22 18:36:35 +0300
commitbc8bd2646f068cfb402850f7c0f9b1dbfe81e5a0 (patch)
tree89213fd6afbf9cc9303c1c2fa08dafc840a9d99d /elm.html.markdown
parent363d5281f1e3d5bee6339b5316405b0a4b592c49 (diff)
parent110511a10110f96b20f107c078f7d5ef4c01b109 (diff)
Merge pull request #1 from adambard/master
Merge from original adambard
Diffstat (limited to 'elm.html.markdown')
-rw-r--r--elm.html.markdown26
1 files changed, 13 insertions, 13 deletions
diff --git a/elm.html.markdown b/elm.html.markdown
index 96554e84..ad80adc9 100644
--- a/elm.html.markdown
+++ b/elm.html.markdown
@@ -51,18 +51,18 @@ not False -- True
["the", "quick", "brown", "fox"]
[1, 2, 3, 4, 5]
-- The second example can also be written with two dots.
-[1..5]
+List.range 1 5
-- Append lists just like strings.
-[1..5] ++ [6..10] == [1..10] -- True
+List.range 1 5 ++ List.range 6 10 == List.range 1 10 -- True
-- To add one item, use "cons".
-0 :: [1..5] -- [0, 1, 2, 3, 4, 5]
+0 :: List.range 1 5 -- [0, 1, 2, 3, 4, 5]
-- The head and tail of a list are returned as a Maybe. Instead of checking
-- every value to see if it's null, you deal with missing values explicitly.
-List.head [1..5] -- Just 1
-List.tail [1..5] -- Just [2, 3, 4, 5]
+List.head (List.range 1 5) -- Just 1
+List.tail (List.range 1 5) -- Just [2, 3, 4, 5]
List.head [] -- Nothing
-- List.functionName means the function lives in the List module.
@@ -72,8 +72,8 @@ List.head [] -- Nothing
-- Access the elements of a pair with the first and second functions.
-- (This is a shortcut; we'll come to the "real way" in a bit.)
-fst ("elm", 42) -- "elm"
-snd ("elm", 42) -- 42
+Tuple.first ("elm", 42) -- "elm"
+Tuple.second ("elm", 42) -- 42
-- The empty tuple, or "unit", is sometimes used as a placeholder.
-- It is the only value of its type, also called "Unit".
@@ -150,10 +150,10 @@ answer =
42
-- Pass functions as arguments to other functions.
-List.map double [1..4] -- [2, 4, 6, 8]
+List.map double (List.range 1 4) -- [2, 4, 6, 8]
-- Or write an anonymous function.
-List.map (\a -> a * 2) [1..4] -- [2, 4, 6, 8]
+List.map (\a -> a * 2) (List.range 1 4) -- [2, 4, 6, 8]
-- You can pattern match in function definitions when there's only one case.
-- This function takes one tuple rather than two arguments.
@@ -180,7 +180,7 @@ fib n =
else
fib (n - 1) + fib (n - 2)
-List.map fib [0..8] -- [1, 1, 2, 3, 5, 8, 13, 21, 34]
+List.map fib (List.range 0 8) -- [1, 1, 2, 3, 5, 8, 13, 21, 34]
-- Another recursive function (use List.length in real code).
listLength aList =
@@ -286,7 +286,7 @@ leftmostElement tree =
-- Put this at the top of the file. If omitted, you're in Main.
module Name where
--- By default, everything is exported. You can specify exports explicity.
+-- By default, everything is exported. You can specify exports explicitly.
module Name (MyType, myValue) where
-- One common pattern is to export a union type but not its tags. This is known
@@ -335,10 +335,10 @@ $ elm repl
-- Packages are identified by GitHub username and repo name.
-- Install a new package, and record it in elm-package.json.
-$ elm package install evancz/elm-html
+$ elm package install elm-lang/html
-- See what changed between versions of a package.
-$ elm package diff evancz/elm-html 3.0.0 4.0.2
+$ elm package diff elm-lang/html 1.1.0 2.0.0
-- Elm's package manager enforces semantic versioning, so minor version bumps
-- will never break your build!
```