Knockout calling view model method twice

So I have a pretty simple use case, which involves disabling a button until the person types something in the text field. Here is my view model setup:

 var pageViewModel = new PageViewModel(); 

 ko.applyBindings(pageViewModel); 

 function PageViewModel() { 

   var self = this; 

   self.email = ko.observable(""); 

   self.hasEmail = ko.computed(function () { 

     return self.email().length != 0; 

   }); 

   //called after user clicks the create button. 

   self.create = function () { 

     $('#modal-body').load('http://localhost:1337/create', function () { 

       $('#modal').modal(); 

     }); 

   } 

 }  

In my view, this is what I have:

       <div id="search"> 

         <form name="input" action="" method="get"> 

           <input type="text" data-bind="value: email" value="The admin's email address" name="field" 

               class="text"/> 

           <input type="submit" data-bind="enable: hasEmail(), click: create()" value="Start" name="search" class="search btn" 

               data-toggle="modal" href="#myModal"/> 

         </form> 

       </div>  

Now for some reason before I found out my problem, it was also calling the create() method whenever the ko.applyBindings() method is called.

Upon looking at the docs, I realized that I have an extra bracket on the create, which causes KO to evaluate the create in the beginning. So the correct code should look like this:

       <div id="search"> 

         <form name="input" action="" method="get"> 

           <input type="text" data-bind="value: email" value="The admin's email address" name="field" 

               class="text"/> 

           <input type="submit" data-bind="enable: hasEmail(), click: create" value="Start" name="search" class="search btn" 

               data-toggle="modal" href="#myModal"/> 

         </form> 

       </div>