1 files changed, 7 insertions, 0 deletions
diff --git a/src/main/java/org/zwobble/couscous/util/ExtraArrays.java b/src/main/java/org/zwobble/couscous/util/ExtraArrays.java
index c4ebc57..457b77b 100644
--- a/src/main/java/org/zwobble/couscous/util/ExtraArrays.java
+++ b/src/main/java/org/zwobble/couscous/util/ExtraArrays.java
@@ -1,11 +1,18 @@
 package org.zwobble.couscous.util;
 
 import java.util.Arrays;
+import java.util.function.BiFunction;
 import java.util.function.Function;
+import java.util.stream.IntStream;
 import java.util.stream.Stream;
 import java.util.stream.StreamSupport;
 
 public class ExtraArrays {
+    public static <T, R> Stream<R> mapWithIndex(T[] array, BiFunction<Integer, T, R> function) {
+        return IntStream.range(0, array.length)
+            .mapToObj(index -> function.apply(index,  array[index]));
+    }
+    
     public static <T, R> Stream<R> map(T[] array, Function<T, R> function) {
         return stream(array).map(function);
     }