Guards

1 files changed, 15 insertions, 0 deletions

diff --git a/src/content/chapter2_flow_control/lesson09_guards/code.gleam b/src/content/chapter2_flow_control/lesson09_guards/code.gleam
new file mode 100644
index 0000000..3744228
--- /dev/null
+++ b/src/content/chapter2_flow_control/lesson09_guards/code.gleam
@@ -0,0 +1,15 @@
+import gleam/io
+
+pub fn main() {
+  let numbers = [1, 2, 3, 4, 5]
+  io.debug(get_first_larger(numbers, 3))
+  io.debug(get_first_larger(numbers, 5))
+}
+
+fn get_first_larger(lists: List(Int), limit: Int) -> Int {
+  case lists {
+    [first, ..] if first > limit -> first
+    [_, ..rest] -> get_first_larger(rest, limit)
+    [] -> 0
+  }
+}