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-rw-r--r--lessons/src/lesson014_higher_order_functions/code.gleam18
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
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+++ b/lessons/src/lesson014_higher_order_functions/code.gleam
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+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
+}