From b68283e57ae68c3060ad249ffa534e27c98e0130 Mon Sep 17 00:00:00 2001
From: Zack Campbell <zajrik@users.noreply.github.com>
Date: Sun, 8 Jan 2017 05:59:45 -0600
Subject: [PATCH] Make _array & _keyArray non-enumerable (#1075)

Because Map has no enumerable properties
---
 src/util/Collection.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/util/Collection.js b/src/util/Collection.js
index bafe710b6..bca75f5b8 100644
--- a/src/util/Collection.js
+++ b/src/util/Collection.js
@@ -9,17 +9,19 @@ class Collection extends Map {
 
     /**
      * Cached array for the `array()` method - will be reset to `null` whenever `set()` or `delete()` are called.
+     * @name Collection#_array
      * @type {?Array}
      * @private
      */
-    this._array = null;
+    Object.defineProperty(this, '_array', { value: null, writable: true, configurable: true });
 
     /**
      * Cached array for the `keyArray()` method - will be reset to `null` whenever `set()` or `delete()` are called.
+     * @name Collection#_keyArray
      * @type {?Array}
      * @private
      */
-    this._keyArray = null;
+    Object.defineProperty(this, '_keyArray', { value: null, writable: true, configurable: true });
   }
 
   set(key, val) {