Small improvement for String.length (dotnet#9469)

* Simplify and improve perf of String.length * Improve performance of String.map * Revert "Improve performance of String.map" * Turn String.length into a one-liner, fixes dotnet#9469 (comment)
xamarin · Feb 22, 2021 · d6123c3 · d6123c3
1 parent 3eb4140
commit d6123c3
Showing 1 changed file with 1 addition and 5 deletions.
diff --git a/src/fsharp/FSharp.Core/string.fs b/src/fsharp/FSharp.Core/string.fs
@@ -103,8 +103,4 @@ namespace Microsoft.FSharp.Core
                 check 0  
 
         [<CompiledName("Length")>]
-        let length (str:string) =
-            if String.IsNullOrEmpty str then
-                0
-            else
-                str.Length
+        let length (str:string) = if isNull str then 0 else str.Length