Don't work alert code jQuery

Question

I want to get an alert after click on submit button. I tried with the following code, but it doesn't work. How can it be done?

DEMO: http://jsfiddle.net/7atv7zgp/

  $('body').delegate('.submit', 'submit', function(e) { e.preventDefault(); alert('ok'); }) 

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <form action="#" method="post"> <input type="text" name="addres" id="keyword-txt5"> <input type="submit" value="submit" class="submit"> </form> 

Answer 1

   $('body').on('submit','form', function(e) {
            e.preventDefault();
            alert('ok');
        })

http://jsfiddle.net/7atv7zgp/2/

Form element have submit event , not button it self. (also, i've used on() method, rather than delegate(), but you can use delegate() if you need older version of jquery).

Answer 2

Simply bind the click event with the button via a class 'submit' and it will solve your purpose

$('.submit').click(function(e) {
      e.preventDefault();
      alert('ok');
});