Rollup merge of #66038 - jdxcode:char-len, r=alexcrichton

doc(str): show example of chars().count() under len()

the docs are great at explaining that .len() isn't like in other
languages but stops short of explaining how to get the character length.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/libcore/str/mod.rs b/src/libcore/str/mod.rs
index f67012d8f2f..1968919f554 100644
--- a/src/libcore/str/mod.rs
+++ b/src/libcore/str/mod.rs
@@ -2085,8 +2085,8 @@ impl str {
     /// let len = "foo".len();
     /// assert_eq!(3, len);
     ///
-    /// let len = "ƒoo".len(); // fancy f!
-    /// assert_eq!(4, len);
+    /// assert_eq!("ƒoo".len(), 4); // fancy f!
+    /// assert_eq!("ƒoo".chars().count(), 3);
     /// ```
     #[stable(feature = "rust1", since = "1.0.0")]
     #[inline]