Data update

Task/Conditional-structures/Gleam/conditional-structures.gleam

@@ -0,0 +1,18 @@
+import gleam/int
+import gleam/io
+
+pub fn conditional_example(x: Int) {
+  // if's below are called "pattern guards".
+  case x {
+    x if x < 0 -> io.println(x |> int.to_string <> " is negative")
+    x if x == 0 -> io.println(x |> int.to_string <> " is zero")
+    _ -> io.println(x |> int.to_string <> " is positive")
+  }
+}
+
+pub fn main() {
+  // Pattern matching is the only conditional structure in Gleam.
+  conditional_example(-10)
+  conditional_example(0)
+  conditional_example(10)
+}