Update to Elixir 1.18 (#1540)

* ci and readme

* replace List.zip

* replace unless link

* remove stray file

* use 1.18.1 and otp 27.2

.github/workflows/ci.yml

@@ -17,8 +17,8 @@ jobs:
     runs-on: ubuntu-20.04
     strategy:
       matrix:
-        elixir: [1.17]
-        otp: [27.0]
+        elixir: [1.18.1]
+        otp: [27.2]
 
     steps:
       - name: Checkout code
@@ -76,8 +76,6 @@ jobs:
     strategy:
       matrix:
         include:
-          - elixir: '1.13.0'
-            otp: '24.1'
           - elixir: '1.14.0'
             otp: '25.0'
           - elixir: '1.15.0'
@@ -86,6 +84,8 @@ jobs:
             otp: '26.2'
           - elixir: '1.17.0'
             otp: '27.0'
+          - elixir: '1.18.1'
+            otp: '27.2'
 
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683

README.md

@@ -8,7 +8,7 @@
 
 ## Setup
 
-The exercises currently target Elixir versions from 1.13 to 1.17 and Erlang/OTP versions from 24 to 27. Detailed installation instructions can be found at
+The exercises currently target Elixir versions from 1.14 to 1.18 and Erlang/OTP versions from 25 to 27. Detailed installation instructions can be found at
 [https://elixir-lang.org/install.html](https://elixir-lang.org/install.html). We recommend using the [asdf version manager](https://github.com/asdf-vm/asdf) to manage multiple Elixir versions.
 
 ## Testing

concepts/cond/about.md

@@ -16,4 +16,4 @@ The `cond` conditional is usually used when there are more than two logical bran
 
 [cond]: https://hexdocs.pm/elixir/case-cond-and-if.html#cond
 [case]: https://hexdocs.pm/elixir/case-cond-and-if.html#case
-[if]: https://hexdocs.pm/elixir/case-cond-and-if.html#if-unless
+[if]: https://hexdocs.pm/elixir/case-cond-and-if.html#if

concepts/if/about.md

@@ -66,7 +66,7 @@ truthy?.(nil)
 # => true
 ```
 
-[getting-started-if]: https://hexdocs.pm/elixir/case-cond-and-if.html#if-unless
+[getting-started-if]: https://hexdocs.pm/elixir/case-cond-and-if.html#if
 [kernel-if]: https://hexdocs.pm/elixir/Kernel.html#if/2
 [kernel-boolean-and]: https://hexdocs.pm/elixir/Kernel.html#and/2
 [kernel-boolean-or]: https://hexdocs.pm/elixir/Kernel.html#or/2

concepts/if/introduction.md

@@ -28,5 +28,5 @@ This syntax is helpful for very short expressions, but should be avoided if the
 
 In Elixir, all datatypes evaluate to a _truthy_ or _falsy_ value when they are encountered in a boolean context (like an `if` expression). All data is considered _truthy_ **except** for `false` and `nil`. In particular, empty strings, the integer `0`, and empty lists are all considered _truthy_ in Elixir.
 
-[getting-started-if]: https://hexdocs.pm/elixir/case-cond-and-if.html#if-unless
+[getting-started-if]: https://hexdocs.pm/elixir/case-cond-and-if.html#if
 [kernel-if]: https://hexdocs.pm/elixir/Kernel.html#if/2

concepts/if/links.json

@@ -1,6 +1,6 @@
 [
   {
-    "url": "https://hexdocs.pm/elixir/case-cond-and-if.html#if-unless",
+    "url": "https://hexdocs.pm/elixir/case-cond-and-if.html#if",
     "description": "Getting Started: `if`"
   },
   {

exercises/concept/file-sniffer/.docs/hints.md

@@ -21,7 +21,7 @@
   - You can use the [`if` macro conditional][if] for binary conditions.
 
 [binary-matching]: https://hexdocs.pm/elixir/binaries-strings-and-charlists.html#binaries
-[if]: https://hexdocs.pm/elixir/case-cond-and-if.html#if-unless
+[if]: https://hexdocs.pm/elixir/case-cond-and-if.html#if
 [mfc]: https://hexdocs.pm/elixir/modules-and-functions.html#function-definition
 [mimetype]: https://en.wikipedia.org/wiki/Media_type
 [pattern-matching]: https://hexdocs.pm/elixir/pattern-matching.html#pattern-matching

exercises/concept/name-badge/.docs/hints.md

@@ -21,5 +21,5 @@
 
 [kernel-if]: https://hexdocs.pm/elixir/Kernel.html#if/2
 [getting-started-basic-strings]: https://hexdocs.pm/elixir/basic-types.html#strings
-[getting-started-if]: https://hexdocs.pm/elixir/case-cond-and-if.html#if-unless
+[getting-started-if]: https://hexdocs.pm/elixir/case-cond-and-if.html#if
 [elixirschool-if]: https://elixirschool.com/en/lessons/basics/control-structures/#if-and-unless-0

exercises/concept/name-badge/.docs/introduction.md

@@ -42,5 +42,5 @@ This syntax is helpful for very short expressions, but should be avoided if the
 In Elixir, all datatypes evaluate to a _truthy_ or _falsy_ value when they are encountered in a boolean context (like an `if` expression). All data is considered _truthy_ **except** for `false` and `nil`. In particular, empty strings, the integer `0`, and empty lists are all considered _truthy_ in Elixir.
 
 [nil-dictionary]: https://www.merriam-webster.com/dictionary/nil
-[getting-started-if]: https://hexdocs.pm/elixir/case-cond-and-if.html#if-unless
+[getting-started-if]: https://hexdocs.pm/elixir/case-cond-and-if.html#if
 [kernel-if]: https://hexdocs.pm/elixir/Kernel.html#if/2

exercises/practice/crypto-square/.meta/example.ex

@@ -19,7 +19,7 @@ defmodule CryptoSquare do
     normalized
     |> String.graphemes()
     |> Enum.chunk_every(section_length, section_length, List.duplicate(" ", section_length))
-    |> List.zip()
+    |> Enum.zip()
     |> Enum.map(&Tuple.to_list/1)
     |> Enum.join(" ")
   end

exercises/practice/matrix/.meta/example.ex

@@ -14,7 +14,7 @@ defmodule Matrix do
 
     %Matrix{
       matrix: rows,
-      transposed_matrix: rows |> List.zip() |> Enum.map(&Tuple.to_list/1)
+      transposed_matrix: rows |> Enum.zip() |> Enum.map(&Tuple.to_list/1)
     }
   end
 

exercises/practice/saddle-points/.meta/example.ex

@@ -24,7 +24,7 @@ defmodule SaddlePoints do
   def columns(str) do
     str
     |> rows
-    |> List.zip()
+    |> Enum.zip()
     |> Enum.map(&Tuple.to_list/1)
   end
 

exercises/practice/spiral-matrix/.meta/example.ex

@@ -27,6 +27,6 @@ defmodule Spiral do
   end
 
   defp transpose(matrix) do
-    matrix |> List.zip() |> Enum.map(&Tuple.to_list/1)
+    matrix |> Enum.zip() |> Enum.map(&Tuple.to_list/1)
   end
 end

exercises/practice/transpose/.meta/example.ex

@@ -26,7 +26,7 @@ defmodule Transpose do
     rows
     |> Enum.map(fn x -> get_padded_row(x, max_length) end)
     |> Enum.map(&String.to_charlist/1)
-    |> List.zip()
+    |> Enum.zip()
     |> Enum.map(&Tuple.to_list/1)
     |> Enum.map(&List.to_string/1)
     |> Enum.map(fn x -> x |> String.trim_trailing("*") |> String.replace("*", " ") end)