From 8975cd7024dc1057794af93fcb74f36844f8e1a5 Mon Sep 17 00:00:00 2001
From: joshaber <joshaber@gmail.com>
Date: Tue, 9 Aug 2016 23:00:47 -0400
Subject: [PATCH] Make ReadonlyArray iterable.

---
 src/lib/es2015.iterable.d.ts | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/src/lib/es2015.iterable.d.ts b/src/lib/es2015.iterable.d.ts
index e1b9d99762b..de339e2bf2c 100644
--- a/src/lib/es2015.iterable.d.ts
+++ b/src/lib/es2015.iterable.d.ts
@@ -63,6 +63,26 @@ interface ArrayConstructor {
     from<T>(iterable: Iterable<T>): Array<T>;
 }
 
+interface ReadonlyArray<T> {
+    /** Iterator */
+    [Symbol.iterator](): IterableIterator<T>;
+
+    /** 
+      * Returns an array of key, value pairs for every entry in the array
+      */
+    entries(): IterableIterator<[number, T]>;
+
+    /** 
+      * Returns an list of keys in the array
+      */
+    keys(): IterableIterator<number>;
+
+    /** 
+      * Returns an list of values in the array
+      */
+    values(): IterableIterator<T>;
+}
+
 interface IArguments {
     /** Iterator */
     [Symbol.iterator](): IterableIterator<any>;