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author | Louis Pilfold <louis@lpil.uk> | 2023-12-06 21:13:12 +0000 |
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committer | Louis Pilfold <louis@lpil.uk> | 2023-12-06 21:13:12 +0000 |
commit | 658de7ac8276cac1c4d8f89d5783b1faaef42871 (patch) | |
tree | 2e41a8d48c30b11d5869579901a645ed486f2476 /lessons/src/lesson008_bools | |
parent | 58efb89355676356ee1006bbd2c8b0ee44108358 (diff) | |
download | tour-658de7ac8276cac1c4d8f89d5783b1faaef42871.tar.gz tour-658de7ac8276cac1c4d8f89d5783b1faaef42871.zip |
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Diffstat (limited to 'lessons/src/lesson008_bools')
-rw-r--r-- | lessons/src/lesson008_bools/code.gleam | 14 | ||||
-rw-r--r-- | lessons/src/lesson008_bools/text.html | 17 |
2 files changed, 31 insertions, 0 deletions
diff --git a/lessons/src/lesson008_bools/code.gleam b/lessons/src/lesson008_bools/code.gleam new file mode 100644 index 0000000..e5c1d98 --- /dev/null +++ b/lessons/src/lesson008_bools/code.gleam @@ -0,0 +1,14 @@ +import gleam/io +import gleam/bool + +pub fn main() { + // Bool operators + io.debug(True && False) + io.debug(True && True) + io.debug(False || False) + io.debug(False || True) + + // Bool functions + io.debug(bool.to_string(True)) + io.debug(bool.to_int(False)) +} diff --git a/lessons/src/lesson008_bools/text.html b/lessons/src/lesson008_bools/text.html new file mode 100644 index 0000000..3f60743 --- /dev/null +++ b/lessons/src/lesson008_bools/text.html @@ -0,0 +1,17 @@ +<p> + A <code>Bool</code> is a either <code>True</code> or <code>False</code>. +</p> +<p> + The <code>||</code>, <code>&&</code>, and <code>!</code> operators can be used + to manipulate bools. +</p> +<p> + The <code>||</code> and <code>&&</code> operators are short-circuiting, + meaning that if the left hand side of the operator is <code>True</code> for + <code>||</code> or <code>False</code> for <code>&&</code> then the right hand + side of the operator will not be evaluated. +</p> +<p> + The <a href="https://hexdocs.pm/gleam_stdlib/gleam/bool.html"><code>gleam/bool</code></a> + standard library module contains functions for working with bools. +</p> |