update changes

Author: a-a-ron

api/controller.js

@@ -10,7 +10,6 @@ exports.calculate = function(req, res) {
     res.json({ error: err.message });
   });
 
-  // TODO: Add operator
   var operations = {
     'add':      function(a, b) { return Number(a) + Number(b) },
     'subtract': function(a, b) { return a - b },

public/client.js

@@ -19,7 +19,6 @@ var operation = null;
 function calculate(operand1, operand2, operation) {
     var uri = location.origin + "/arithmetic";
 
-    // TODO: Add operator
     switch (operation) {
         case '+':
             uri += "?operation=add";

public/index.html

@@ -40,7 +40,6 @@
             <button class="btn" onClick="operationPressed('+')">+</button>
             <button class="btn" onClick="equalPressed()">=</button>
 
-            <!-- TODO: Buttons -->
           </div>
         </div>
       </div>