high-school-sweetheart v2

high-school-sweetheart/src/high_school_sweetheart.gleam

@@ -1,23 +1,17 @@
 import gleam/list
+import gleam/result
 import gleam/string
 
 pub fn first_letter(name: String) {
-  case string.first(string.trim(name)) {
+  name |> string.trim |> string.first |> result.unwrap("")
-    Error(_) -> ""
-    Ok(first) -> first
-  }
 }
 
 pub fn initial(name: String) {
-  first_letter(name) |> string.uppercase <> "."
+  name |> first_letter |> string.uppercase |> string.append(".")
 }
 
 pub fn initials(full_name: String) {
-  case string.split(full_name, " ") {
+  full_name |> string.split(" ") |> list.map(initial) |> string.join(" ")
-    [] -> ""
-    [first, last] -> initial(first) <> " " <> initial(last)
-    _ -> ""
-  }
 }
 
 pub fn pair(full_name1: String, full_name2: String) {