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| author | Louis Pilfold <louis@lpil.uk> | 2023-12-12 13:04:55 +0000 |
|---|---|---|
| committer | Louis Pilfold <louis@lpil.uk> | 2023-12-12 13:04:55 +0000 |
| commit | 819cc743eba34cdd25e25f3c6ba5891a8cb6077d (patch) | |
| tree | dd6454f3ec7ed3c878da0450475a209d2864e0f6 /lessons/src/lesson021_list_functions/text.html | |
| parent | e660bc6a4eb2b7537e33617df9b411ef07a894d7 (diff) | |
| download | tour-819cc743eba34cdd25e25f3c6ba5891a8cb6077d.tar.gz tour-819cc743eba34cdd25e25f3c6ba5891a8cb6077d.zip | |
List functions
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| -rw-r--r-- | lessons/src/lesson021_list_functions/text.html | 25 |
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diff --git a/lessons/src/lesson021_list_functions/text.html b/lessons/src/lesson021_list_functions/text.html new file mode 100644 index 0000000..e143654 --- /dev/null +++ b/lessons/src/lesson021_list_functions/text.html @@ -0,0 +1,25 @@ +<p> + The <a href="https://hexdocs.pm/gleam_stdlib/gleam/list.html"><code>gleam/list</code></a> + standard library module contains functions for working with lists. A Gleam + program will likely make heavy use of this module. +</p> + +<p> + <a href="https://hexdocs.pm/gleam_stdlib/gleam/list.html#map"><code>map</code></a> + makes a new list by running a function on each element in a list. +</p> +<p> + <a href="https://hexdocs.pm/gleam_stdlib/gleam/list.html#filter"><code>filter</code></a> + makes a new list containing only the elements for which a function returns + true. +</p> +<p> + <a href="https://hexdocs.pm/gleam_stdlib/gleam/list.html#fold"><code>fold</code></a> + combines all the elements in a list into a single value by running a function + left-to-right on each element, passing the result of the previous call to the + next call. +</p> +<p> + It's worth getting familiar with all the functions in this module when writing + Gleam code. +</p> |