Data Structure : remove live code & console.log

Data-Structures/Queue/CircularQueue.js

@@ -28,7 +28,7 @@ class CircularQueue {
   // REMOVES ELEMENTS
   dequeue () {
     if (this.checkEmpty()) {
-      console.log('UNDERFLOW')
+      // UNDERFLOW
       return
     }
     const y = this.queue[this.front]
@@ -62,15 +62,15 @@ class CircularQueue {
   // Checks if max capacity of queue has been reached or not
   checkOverflow () {
     if ((this.front === 1 && this.rear === this.maxLength) || (this.front === this.rear + 1)) {
-      console.log('CIRCULAR QUEUE OVERFLOW')
+      // CIRCULAR QUEUE OVERFLOW
       return true
     }
   }
 
-  // Prints the entire array
-  display () {
+  // Prints the entire array ('*' represents blank space)
+  display (output = value => console.log(value)) {
     for (let index = 1; index < this.queue.length; index++) {
-      console.log(this.queue[index])
+      output(this.queue[index])
     }
   }
 
@@ -85,24 +85,4 @@ class CircularQueue {
   }
 }
 
-function main () {
-  // Star represents blank space
-  const queue = new CircularQueue(6) // Enter Max Length
-  queue.enqueue(1)
-  queue.enqueue(15)
-  queue.enqueue(176)
-  queue.enqueue(59)
-  queue.enqueue(3)
-  queue.enqueue(55)
-
-  queue.display()
-
-  queue.dequeue()
-  queue.dequeue()
-  queue.dequeue()
-  queue.display()
-
-  console.log(queue.peek())
-}
-
-main()
+export { CircularQueue }

Data-Structures/Queue/Queue.js

@@ -43,38 +43,11 @@ const Queue = (function () {
   }
 
   // List all the items in the queue
-  Queue.prototype.view = function () {
-    console.log(this.queue)
+  Queue.prototype.view = function (output = value => console.log(value)) {
+    output(this.queue)
   }
 
   return Queue
 }())
 
-// Implementation
-const myQueue = new Queue()
-
-myQueue.enqueue(1)
-myQueue.enqueue(5)
-myQueue.enqueue(76)
-myQueue.enqueue(69)
-myQueue.enqueue(32)
-myQueue.enqueue(54)
-
-myQueue.view()
-
-console.log(`Length: ${myQueue.length()}`)
-console.log(`Front item: ${myQueue.peek()}`)
-console.log(`Removed ${myQueue.dequeue()} from front.`)
-console.log(`New front item: ${myQueue.peek()}`)
-console.log(`Removed ${myQueue.dequeue()} from front.`)
-console.log(`New front item: ${myQueue.peek()}`)
-myQueue.enqueue(55)
-console.log('Inserted 55')
-console.log(`New front item: ${myQueue.peek()}`)
-
-for (let i = 0; i < 5; i++) {
-  myQueue.dequeue()
-  myQueue.view()
-}
-
-// console.log(myQueue.dequeue()); // throws exception!
+export { Queue }