#if not FABLE_COMPILER_3

Author: wallymathieu

src/FSharpPlus/Extensions/String.fs

@@ -52,6 +52,7 @@ module String =
 
         source.Contains subString
 
+    #if !FABLE_COMPILER_3
     /// Does the source string start with the given subString? -- function wrapper for String.StartsWith method using InvariantCulture.
     let startsWith (subString: string) (source: string) =
         #if !NET45
@@ -60,6 +61,7 @@ module String =
         #endif
 
         source.StartsWith (subString, false, CultureInfo.InvariantCulture)
+    #endif
 
     /// Does the source string end with the given subString? -- function wrapper for String.EndsWith method using InvariantCulture.
     let endsWith subString (source: string) =