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-rw-r--r--lessons/src/lesson004_ints/code.gleam5
-rw-r--r--lessons/src/lesson004_ints/text.html13
2 files changed, 18 insertions, 0 deletions
diff --git a/lessons/src/lesson004_ints/code.gleam b/lessons/src/lesson004_ints/code.gleam
index fbead50..5076902 100644
--- a/lessons/src/lesson004_ints/code.gleam
+++ b/lessons/src/lesson004_ints/code.gleam
@@ -1,4 +1,5 @@
import gleam/io
+import gleam/int
pub fn main() {
// Int arithmetic
@@ -13,4 +14,8 @@ pub fn main() {
io.debug(2 < 1)
io.debug(2 >= 1)
io.debug(2 <= 1)
+
+ // Standard library int functions
+ io.debug(int.max(42, 77))
+ io.debug(int.clamp(5, 10, 20))
}
diff --git a/lessons/src/lesson004_ints/text.html b/lessons/src/lesson004_ints/text.html
index f5222ee..32a7aa8 100644
--- a/lessons/src/lesson004_ints/text.html
+++ b/lessons/src/lesson004_ints/text.html
@@ -1,2 +1,15 @@
<p>
+ Gleam's <code>Int</code> type represents whole numbers.
+</p>
+<p>
+ There are arithmetic and comparison operators for ints.
+</p>
+<p>
+ When running on the Erlang virtual machine ints have no maximum and minimum
+ size. When running on JavaScript runtimes ints are represented using
+ JavaScript's 64 bit floating point numbers,
+</p>
+<p>
+ The <a href="https://hexdocs.pm/gleam_stdlib/gleam/int.html"><code>gleam/int</code></a>
+ standard library module contains functions for working with ints.
</p>