From 394e8aa27e9c21e4be7216f5e8a63cc09e30250a Mon Sep 17 00:00:00 2001
From: Jim Walker <jim.walker@namely.com>
Date: Mon, 7 Mar 2016 15:45:32 -0500
Subject: [PATCH] add example for ranging through keys

---
 examples/range/range.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/examples/range/range.go b/examples/range/range.go
index ecb874f..3f1255e 100644
--- a/examples/range/range.go
+++ b/examples/range/range.go
@@ -34,6 +34,11 @@ func main() {
         fmt.Printf("%s -> %s\n", k, v)
     }
 
+    // `range` can also iterate over just the keys of a map.
+    for k := range kvs {
+      fmt.Println("key:", k)
+    }
+
     // `range` on strings iterates over Unicode code
     // points. The first value is the starting byte index
     // of the `rune` and the second the `rune` itself.