[gnome-maps/wip/routing: 59/65] Utils: add isArray-function

[Mattias Bengtsson <mattiasb src gnome org>]

commit e88a477a707913a7a2af4c8ca120200301ceb52e
Author: Mattias Bengtsson <mattias jc bengtsson gmail com>
Date:   Sun Aug 25 01:24:27 2013 +0200

    Utils: add isArray-function
    
    Utils.isArray checks if an object is an array. This isn't very
    straight forward in JavaScript unfortunately so best to make a
    separate function for it.
    
    More information:
     - http://blog.niftysnippets.org/2010/09/say-what.html
     - http://stackoverflow.com/questions/4775722/javascript-check-if-object-is-array

 src/utils.js |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/src/utils.js b/src/utils.js
index 631ca12..d7cf5bb 100644
--- a/src/utils.js
+++ b/src/utils.js
@@ -134,6 +134,10 @@ function getUIObject(res, ids) {
     return ret;
 }
 
+function isArray(obj) {
+    return Object.prototype.toString.call(obj) === '[object Array]';
+}
+
 function readFile(filename) {
     let status, buffer;
     let file = Gio.File.new_for_path(filename);