Updated usage of StrExt.parse() as per a recommendation by edwardw.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/doc/reference.md b/src/doc/reference.md
index e1463249207..73880549ae6 100644
--- a/src/doc/reference.md
+++ b/src/doc/reference.md
@@ -3005,7 +3005,7 @@ Some examples of call expressions:
 # fn add(x: i32, y: i32) -> i32 { 0 }
 
 let x: i32 = add(1i32, 2i32);
-let pi: Option<f32> = "3.14".parse();
+let pi: Result<f32, _> = "3.14".parse();
 ```
 
 ### Lambda expressions