Added get method to the queue helper JS

2016-03-27 22:59:43 -04:00
parent b7666cca6d
commit f44d03c4c7
1 changed files with 12 additions and 0 deletions
--- a/queue/queue.js
+++ b/queue/queue.js
@@ -67,4 +67,16 @@ function Queue(){
    return (queue.length > 0 ? queue[offset] : undefined);
  }
  
+  /* Returns the item at the spot specified by place in the queue (without 
+   * dequeuing it). If the queue is emprty or the requested place is outside 
+   * the queue length then undefined is returned.
+   */
+  this.get = function(place){
+    var item = undefined;
+	if (queue.length > 0 && place < (queue.length - offset)) {
+	  item = queue[(offset + place)];
+	}
+    return item;
+  }
+
 }