Dart format

Author: akashgk

data_structures/Queue/List_Queue.dart

@@ -47,21 +47,21 @@ class ListQueue<T> {
 void main() {
   test("Enqueue and deque elements", () {
     ListQueue<int> queue = new ListQueue<int>();
-    
-    // Note: The original hasElements returns true if queue.length > 0, 
+
+    // Note: The original hasElements returns true if queue.length > 0,
     // but queue is initialized with length MAX_SIZE (10), so it always returns true.
-    expect(queue.hasElements(), isTrue); 
-    
+    expect(queue.hasElements(), isTrue);
+
     queue.enque(12);
     queue.enque(2);
     queue.enque(7);
-    
+
     expect(queue.queue.sublist(0, 3), equals([12, 2, 7]));
-    
+
     expect(queue.deque(), equals(12));
     expect(queue.deque(), equals(2));
     expect(queue.deque(), equals(7));
-    
+
     // Deque on empty
     expect(queue.deque(), isNull);
   });

data_structures/Queue/Priority_Queue.dart

@@ -73,12 +73,12 @@ void main() {
 
     expect(queue.size, equals(4));
     expect(queue.front, equals(2)); // priority 1
-    
+
     expect(queue.dequeue(), equals(2));
     expect(queue.dequeue(), equals(1)); // priority 2, enqueued first
     expect(queue.dequeue(), equals(4)); // priority 2
     expect(queue.dequeue(), equals(3)); // priority 3
-    
+
     expect(queue.isEmpty, isTrue);
     expect(queue.dequeue(), isNull);
   });

data_structures/Stack/Array_Stack.dart

@@ -63,7 +63,7 @@ void main() {
     arrayStack.push("4");
     arrayStack.push('5');
     arrayStack.push("6");
-    
+
     expect(arrayStack.pop(), equals('6'));
     expect(arrayStack.pop(), equals('5'));
     expect(arrayStack.pop(), equals('4'));

data_structures/Stack/Linked_List_Stack.dart

@@ -62,7 +62,7 @@ class LinkedListStack<T> {
 void main() {
   test("Push and Pop elements from LinkedListStack", () {
     LinkedListStack<String> stack = new LinkedListStack<String>();
-    
+
     expect(stack.isEmpty(), isTrue);
     expect(stack.getSize(), equals(0));
 
@@ -78,7 +78,7 @@ void main() {
     expect(stack.pop(), equals("9"));
     expect(stack.pop(), equals("5"));
     expect(stack.pop(), equals("2"));
-    
+
     expect(stack.isEmpty(), isTrue);
     expect(stack.pop(), isNull);
   });