Functions

1 files changed, 18 insertions, 0 deletions

diff --git a/lessons/src/lesson014_higher_order_functions/code.gleam b/lessons/src/lesson014_higher_order_functions/code.gleam
new file mode 100644
index 0000000..f453975
--- /dev/null
+++ b/lessons/src/lesson014_higher_order_functions/code.gleam
@@ -0,0 +1,18 @@
+import gleam/io
+
+pub fn main() {
+  // Call a function with another function
+  io.debug(twice(1, add_one))
+
+  // Functions can be assigned to variables
+  let function = add_one
+  io.debug(function(100))
+}
+
+fn twice(a: Int, function: fn(Int) -> Int) -> Int {
+  function(function(a))
+}
+
+fn add_one(a: Int) -> Int {
+  a + 1
+}