significantly improved

src/queue.ts

@@ -27,7 +27,7 @@ export class Queue<T> extends Events.EventEmitter {
   }
 
   deq() : T {
-    var x : T  = this.peek()
+    let x : T  = this.peek()
     this.q.shift()
 
     return x
@@ -38,7 +38,7 @@ export class Queue<T> extends Events.EventEmitter {
       throw new Error("queue is empty")
     }
 
-    var x : T = this.q[0]
+    let x : T = this.q[0]
 
     return x
   }