From 99077283baf722c6c36c35630d267fa6299fa935 Mon Sep 17 00:00:00 2001
From: Bauke <me@bauke.xyz>
Date: Thu, 7 Apr 2022 19:33:45 +0200
Subject: [PATCH] Solve length-of-last-word.

---
 source/length_of_last_word/mod.rs | 17 +++++++++++++++++
 source/lib.rs                     |  1 +
 2 files changed, 18 insertions(+)
 create mode 100644 source/length_of_last_word/mod.rs

diff --git a/source/length_of_last_word/mod.rs b/source/length_of_last_word/mod.rs
new file mode 100644
index 0000000..e30440c
--- /dev/null
+++ b/source/length_of_last_word/mod.rs
@@ -0,0 +1,17 @@
+pub fn length_of_last_word(string: String) -> i32 {
+  string
+    .split_whitespace()
+    .last()
+    .map(|word| word.len())
+    .unwrap_or_default() as i32
+}
+
+#[test]
+fn test_length_of_last_word() {
+  assert_eq!(length_of_last_word("Hello World".to_string()), 5);
+  assert_eq!(
+    length_of_last_word("   fly me   to   the moon  ".to_string()),
+    4
+  );
+  assert_eq!(length_of_last_word("luffy is still joyboy".to_string()), 6);
+}
diff --git a/source/lib.rs b/source/lib.rs
index be6e190..8194462 100644
--- a/source/lib.rs
+++ b/source/lib.rs
@@ -1,4 +1,5 @@
 pub mod implement_strstr;
+pub mod length_of_last_word;
 pub mod longest_common_prefix;
 pub mod palindrome_number;
 pub mod plus_one;