From 12925a35b9c962a243046cab7d0d520186f757c3 Mon Sep 17 00:00:00 2001
From: Frederic Junod <frederic.junod@camptocamp.com>
Date: Thu, 29 Jan 2015 12:00:39 +0100
Subject: [PATCH] Use goog.isDef to check the opt_array param

---
 src/ol/collection.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ol/collection.js b/src/ol/collection.js
index 77acfc6c9e..dacf2f3551 100644
--- a/src/ol/collection.js
+++ b/src/ol/collection.js
@@ -95,7 +95,7 @@ ol.Collection = function(opt_array) {
    * @private
    * @type {Array.<T>}
    */
-  this.array_ = opt_array || [];
+  this.array_ = goog.isDef(opt_array) ? opt_array : [];
 
   this.updateLength_();