fixed README about fold

myeonginwoo · Dec 28, 2016 · 77c0b34 · 77c0b34
1 parent 6a85aaa
commit 77c0b34
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/README.md b/README.md
@@ -26,6 +26,15 @@ val either: Either<String, Int> = try {
 }
 ```
 
+fold
+```kotlin
+val leftEither: Either<String, Int> = Left("test")
+println(leftEither.fold({ "Left is $it" }, { it * 3 }))  // "Left is test"
+
+val rightEither: Either<String, Int> = Right(6)
+pirntln(rightEither.fold({ "Left is $it" }, { it * 3 })) // 18)
+```
+
 map
 ```kotlin
 //left